In economics and in the social sciences, the study of decision making of the single individual is an important preliminary step to provide a sound foundation for the analysis of equilibria in economic and social systems. Neuroeconomic analysis of the process has been a recent fruitful development in this direction. In the more recent past a new direction of research has emerged, studying the interplay of the decision making of the single individual with the economic and social environment that surrounds (...) him. We review some of the results in this field, both theoretical and experimental, and suggest that a closer development of these two methods of research will be necessary in the future. (shrink)

A number of theories about the origins of musicality have incorporated biological and social perspectives. Darwin argued that musicality evolved by sexual selection, functioning as a courtship display in reproductive partner choice. Darwin did not regard musicality as a sexually dimorphic trait, paralleling evidence that both sexes produce and enjoy music. A novel research strand examines the effect of musicality on sexual attraction by acknowledging the importance of facial attractiveness. We previously demonstrated that music varying in emotional content increases (...) the perceived attractiveness and dating desirability of opposite-sex faces only in females, compared to a silent control condition. Here, we built upon this approach by presenting the person depicted (target) as the performer of the music (prime), thus establishing a direct link. We hypothesized that musical priming would increase sexual attraction, with high-arousing music inducing the largest effect. Musical primes (25 s, piano solo music) varied in arousal and pleasantness, and targets were photos of other-sex faces of average attractiveness and with neutral expressions (2 s). Participants were 35 females and 23 males (heterosexual psychology students, single, and no hormonal contraception use) matched for musical background, mood, and liking for the music used in the experiment. After musical priming, females’ ratings of attractiveness and dating desirability increased significantly. In males, only dating desirability was significantly increased by musical priming. No specific effects of music-induced pleasantness and arousal were observed. Our results, together with other recent empirical evidence, corroborate the sexual selection hypothesis for the evolution of human musicality. (shrink)

This study analyzes the marketing ethics decision-making process of Thai managers. In particular, it examines the relative influences of ethical perceptions, religiosity, personal moral philosophies, and corporate ethical values on ethical intentions of managers in Thailand. Managers enrolled in executive MBA or special MBA programs from public and private universities throughout Thailand were selected as target respondents. The survey results generally indicate that both dimensions of moral philosophies, idealism and relativism, are significant predictors of a Thai manager''s ethical intention, as (...) hypothesized. The results also reveal that perceived ethical problem is a positive factor of a Thai manager''s ethical intention. The results generally support our hypothesis regarding the influence of corporate ethical values, that Thai managers in organizations with higher levels of ethical values tend to have a more ethical intention than the managers in organizations with lower levels of ethical values. The survey results regarding the influences of religiosity, however, are mixed. (shrink)

This paper examines the normative ideas flowing from the contemporary theories that make up the New Finance. These theories include the Irrelevance Theorem, Efficient Market Hypothesis, Capital Asset Pricing Model, Options Pricing Model, and Agency Theory. The behavioral consequences that would ensue if everyone took the normative precepts of the New Finance seriously are subjected to a Kantian analysis to determine their ethical implications. It is concluded that the corporate world in the New Finance is a place where (...) the firm can select any operating and financial strategies that it wishes, and the investors will respond immediately through a combination of homemade portfolio diversification, clever option positions, and carefully constructed agency relationships, all of which results in a pervasive nihilism. Recommendations are offered on how these features of the New Finance might be avoided or moderated. (shrink)

The Significance of Business Localization Factors in the Czech Republic This article is concerned with the significance of individual localization factors during the decision-making of economic subjects regarding the location of their businesses. In the first phase of the research, the investigated localization factors were divided into four groups into regional, local, business, labor and infrastructure. The selected localization factors were investigated with the help of an empirical examination of thirteen selected economic branches in the secondary and tertiary sectors. In (...) subsequent stages, a statistical analysis of the acquired data was performed; the selected economic sections were compared among themselves; and with the help of a diffusion analysis, the dependence of the evaluation on the size of the enterprise and on the economic activities of the selected respondents was investigated. The main goal of the research was to identify the current localization factors associated with supplier and customer markets and to determine their significance. In the context of the research, the hypothesis was verified that despite the existence of various approaches to determining localization factors, in part there are localization factors that act universally in all economic branches and further factors that specifically manifest themselves only in some branches. In the context of each factor, investigated was whether the evaluation of a factor depends on the economic branch and whether it is possible to consider an investigated factor as universal. It was also determined whether or not the evaluation of a factor is directly proportionate to the size of the business. From the research results, it follows that during localization, businesses place the greatest significance on the availability of information and communications technologies, geographic proximity to customers, availability of qualified human resources and on transportation costs. Localization decision-making is affected by many factors and depends on a large number of circumstances. (shrink)

The article raises the problem of functionality and rational explanation of large arrays of communicative and unclaimed scientific knowledge. To solve the problem and explain this phenomenon, the resources of the system-communicative theory of scientific communication and social-evolutionist approaches are involved. The ability of the system-communicative theory itself to explain this phenomenon is considered as a possibility of its verification. In conclusion, a working hypothesis is proposed linking the existence of a class of unclaimed research and researchers with the (...) function of meta-observation: through their online network reactions on appropriate electronic platforms (downloads, citations, readings, reviews, recommendations, etc.), the distribution of scientific reputations of science leaders and selection of the best scientific knowledge is ensured. This function, according to the author, compensates for the lack of an external audience or public capable of understanding and adequately evaluating scientific achievements in the scientific communication system. It is concluded that the past “collegial and deliberative” assessment of scientific achievements, the appropriate distribution of reputations and support for research projects is incompatible with the dynamic conditions of the “publication market”. (shrink)

PurposeAs a new human resource management practice, idiosyncratic deals are personalized employment arrangements negotiated between employees and employers and intended to benefit them both. It plays an important role in attracting, retaining and motivating employees to promote breakthrough innovation. Based on the input-process-output model, this paper examines the relationship between team idiosyncratic deals and team breakthrough innovation, the mediating role of team exploratory-exploitative knowledge sharing, and the moderating roles of team transactive memory systems and team cognitive flexibility.Participants and methodsIn order (...) to reduce the effects of common method biases and causal lag effect, this study is divided into three stages for data collection, with a time interval of 1 month. Eighty teams from six enterprises in Shanghai and Hangzhou were selected as samples, and the hypothesis test was carried out by hierarchical regression analysis, bootstrap, and Johnson-Neyman method.ResultsThe results show that higher team idiosyncratic deals are associated with higher team breakthrough innovation through higher team exploratory-exploitative knowledge sharing, and that team transactive memory systems and team cognitive flexibility positively moderate the mediating effect of team exploratory-exploitative knowledge sharing in the relationship between team idiosyncratic deals and team breakthrough innovation in the first stage and the second stage, respectively. Under the joint effect of high team transactive memory systems and high team cognitive flexibility, the mediating effect of team exploratory-exploitative knowledge sharing is stronger.ConclusionThe research results break through the previous research framework of social exchange theory, and I-P-O model to explore the influence mechanism of team idiosyncratic deals, in order to promote the sustainable growth of team breakthrough innovation through this non-standard work arrangement. It is hoped that this research can inspire modern enterprises to create team idiosyncratic deals for valuable teams engaged in breakthrough innovation, which are more conducive to give full play to their heterogeneous talents, and finally help enterprises break through the industry bottleneck and win the market competition. (shrink)

Sharpe’s ratio is the most widely used index for establishing an order of priority for the portfolios to which the investor has access, and the purpose of this investigation is to verify that Sharpe’s ratio allows decisions to be made in investment portfolios considering different financial market conditions. The research is carried out by autoregressive model of the financial series of returns using Sharpe’s ratio for evaluations looking over the priority of financial assets which the investor can access while (...) observing the effects that can cause autocorrelated series in evaluation measures for financial assets. The results presented in this study confirm the hypothesis proposed in which Sharpe’s ratio allows decisions to be made in the selection of investment portfolios under normal conditions thanks to the definition of a robustness function, whose empirical estimation shows an average 73% explanation of the variance in the degradation of the Spearman coefficient for each of the performance measures; however, given the presence of autocorrelation in the financial series of returns, this similarity is broken. (shrink)

The predominant use of junk food in our societies is continuously held responsible for the obese body physiques and overweight among the kids and adolescents. The current supportive environments where organic foods are limited, and new processed foods have been brought to the market with more variant tastes and acceptability for the kids and adolescents that have diverged their eating patterns. It has significantly contributed to the health issues and growth discrepancies of the users. However, the awareness of the (...) food contents is an important milestone for understanding the risks associated with the usage of junk foods. A quantitative approach has been used in this study to measure the effect of perceived severity, vulnerability and fear on the junk food eating behaviors and ultimately on the obesity. The moderating role of product knowledge hiding has also been measured on the relationship of junk food eating and obesity. Structural equation modeling is used using the software Smart-PLS for measuring the hypothesis with a sample size of 228 selected through purposive sampling. The sample consisted of kids and adolescents who were reached on purpose for data collection. The current study has explored the role of perceived severity, vulnerability and the fear of using junk foods which have been found as a negative effect on junk food eating behavior which is positively associated with obesity among the kids and adolescents. The result of study shows that perceived threat has a negative effect on the junk food eating behavior of the adolescents. However, the positive relationship of junk food eating behavior with obesity can be decreased if the information about the products is not hidden. This study will be useful for making the consumers aware of the product knowledge hiding of the junk food usage. Moreover, it will help the users in creating understanding of risks allied with the use of junk food which may be addressed in order to avoid obesity issues in the kids and adolescents globally. (shrink)

Sustainability is concerned with the impact of present actions on the ecosystems, societies, and environments of the future. Such concerns should be reflected in the strategic planning of sustainable corporations. Strategic intentions of this nature are operationalized through the adoption of a long-term focus and a more inclusive set of responsibilities focusing on ethical practices, employees, environment, and customers. A central hypothesis, that we test in this paper is that companies which attend to this set of responsibilities under the (...) term superior sustainable practices, have higher financial performance compared to those that do not engage in such practices. The target population of this study consists of the top 100 sustainable global companies in 2008 which have been selected from a universe of 3,000 firms from the developed countries and emerging markets. We find significant higher mean sales growth, return on assets, profit before taxation, and cash flows from operations in some activity sectors of the sample companies compared to the control companies over the period of 2006–2010. Furthermore, our findings show that the higher financial performance of sustainable companies has increased and been sustained over the sample. Notwithstanding sample limitation, causal evidence reported in this paper suggests that, there is bi-directional relationship between corporate social responsibilities practices and corporate financial performance. (shrink)

Sustainable Development Goal (SDG) 2 relates to ending hunger, achieving food security and improving nutrition, and promoting sustainable agriculture. The SDGs mention only a few political indicators and SDG2 in particular is largely devoid of political considerations to end hunger and achieve food security. Nobel Laureate Amartya Sen famously observed the absence of famine in democracies, suggesting that a democratic system provides checks and balances that prevent famine. His observation has elicited further debate and triggered empirical studies in recent years. (...) Going beyond Sen’s hypothesis, this essay examines other political factors that would explain vulnerability to famine and that need to be addressed more explicitly in SDG 2 and similar initiatives. By taking the case of pastoralists in the Afar region of Ethiopia, this research explores selected political determinants of vulnerability to famine. The Eritrea-Ethiopia war and the ensuing border closure have had a detrimental effect on the livelihood of pastoralists in Afar – many pastoralists were deprived of a market and a reliable source of income. In addition, Afar pastoralists were sidelined from the informal salt sector on which they used to rely. The state facilitated this expropriation, leaving pastoralists even more vulnerable to famine. I argue that political considerations are crucial in successfully ending hunger and achieving food security. The essay uses a qualitative case study design and is based on a PhD dissertation. (shrink)

This research aims to determine which dimensions of online convenience influence generation z consumers’ cognitive and affective attitudes and online impulsive buying behavior. The moderating effect of social media celebrity is also investigated to examine the attitude-behavior gap. A total of 348 responses from Chinese users who followed digital celebrities were received using purposive sampling. Data analysis and hypothesis testing were carried out using SmartPLS, version 3. The results indicated that relationship convenience, possession convenience, post possession conveniences, transaction convenience, (...) and evaluation convenience have a crucial impact on cognitive and affective attitudes. Similarly, cognitive and affective attitudes are significant and positive predictors of generation z consumers’ online impulsive buying behavior. Moreover, empirical results supported the moderating role of social media celebrities that aid marketers in selecting a product endorser. The implications for marketers and policymakers are discussed based on the above research findings. Moreover, future research directions are suggested. (shrink)

Hayek and the Efficient Market Hypothesis are often seen as proposing a similar theory of prices. Hayek is seen as proposing to understand prices as information conveyer, incorporating inform...

Enacting an AI system typically requires three iterative phases where AI engineers are in command: selection and preparation of the data, selection and configuration of algorithmic tools, and fine-tuning of the different parameters on the basis of intermediate results. Our main hypothesis is that these phases involve practices with ethical questions. This paper maps these ethical questions and proposes a way to address them in light of a neo-republican understanding of freedom, defined as absence of domination. We (...) thereby identify different types of responsibility held by AI engineers and link them to concrete suggestions on how to improve professional practices. This paper contributes to the literature on AI and ethics by focusing on the work necessary to configure AI systems, thereby offering an input to better practices and an input for societal debates. (shrink)

Mobile app stores provide an extremely rich source of information on app descriptions, characteristics, and usage, and analyzing these data provides insights and a deeper understanding of the nature of apps. However, manual analysis of this vast amount of information on mobile apps is not a simple and straightforward task; it is costly in terms of human effort and time. Computational methods such as topic modeling can provide an efficient and satisfactory approach to mobile app information analysis. Topic modeling is (...) a type of statistical modeling technique for discovering abstract topics that occur in a set of documents. This study explores the relationship between features of Arabic apps and investigates how well the current predefined Google Play app categories represent the type and genre of Arabic mobile apps. Based on the textual app description analysis, we aim to design and develop a sustainable classification system using the Latent Dirichlet Allocation method of topic modeling in order to cover the Arabic apps classification in Google Play app store. Our study supports the hypothesis that the textual app descriptions are effective in suggesting new categories for Arabic mobile apps in Google Play app store. Also, the results indicated that the current classification on Google Play app store is not suitable for our case study “Arabic apps,” as well as it is not sustainable, as it can not cover the new app types including Arabic apps. This study offers an important contribution to Arabic app analysis and design, to improve app search and exploration in several domains such as business, marketing, and technical development. Furthermore, it provides insights for the future of Arabic app research and provides guidance for the development of an Arabic app dashboard that will support users on how to select an app based on their specific needs. (shrink)

We prove that every usco multimap $$\varPhi :X\rightarrow Y$$ Φ : X → Y from a metrizable separable space X to a GO-space Y has an $$F_\sigma $$ F σ -measurable selection. On the other hand, for the split interval $${\ddot{\mathbb I}}$$ I ¨ and the projection $$P:{{\ddot{\mathbb I}}}^2\rightarrow \mathbb I^2$$ P : I ¨ 2 → I 2 of its square onto the unit square $$\mathbb I^2$$ I 2, the usco multimap $${P^{-1}:\mathbb I^2\multimap {{\ddot{\mathbb I}}}^2}$$ P - 1 (...) : I 2 ⊸ I ¨ 2 has a Borel selection if and only if the Continuum Hypothesis holds. This CH-example shows that know results on Borel selections of usco maps into fragmentable compact spaces cannot be extended to a wider class of compact spaces. (shrink)

The impact of globalization on human rights has generated substantial debate. On the one hand, those making liberal, free-market arguments assert that globalization has a positive impact on developing countries through the increased generation of wealth (e.g., Garrett 1998; Richards et al. in International Studies Quarterly 45:219–239, 2001; Rodrik in Challenge 41:81–94, 1997). On the other hand, the critical perspective claims that globalization negatively impacts respect for human rights because trading arrangements, while open, are detrimentally uneven (e.g., Carleton 1989; (...) Haggard and Maxfield 1996; Stiglitz and Charlton 2005). However, few have looked at the relationship between globalization and respect for economic and social rights. In order to test this relationship, I examine non-OECD countries utilizing two-stage regression analysis to control for investment-selection factors. I find mixed results for the hypothesis that globalization negatively affects respect for economic and social rights. Consistent with Richards et al. (International Studies Quarterly 45:219–239, 2001), I conclude by arguing for the need to disaggregate globalization in order to determine its true effects. (shrink)

The basic purpose of this study is to analyze the impact of intellectual capital on corporate financial performance. This study is conducted on pharmaceutical sector listed in Pakistan Stock Exchange. Data for this study was collected from audited annual financial statements of selected business organizations over period of ten year i.e. from 2005-2014. Value Added Intellectual Coefficient methodology is employed, in order to measure IC and its different components. The firm’s financial performance is measured by using profitability measures including ROE (...) and ROA, market to book value and asset turnover. In order to analyze the collected data, the Partial Least Square, a SEM technique. These approaches are used to assess the measurement and structural models. The results of analysis have supported the proposed hypothesis i.e. there is significant positive impact of intellectual capital on firm’s financial performance among pharmaceutical industries of Pakistan. (shrink)

This paper presents a procedure to select equitable stable allocations in two-sided matching markets without side payments. The Equitable set is computed using the Equitable algorithm. The algorithm limits the set of options available for each agent throughout the procedure. The stable matchings selected are generally not extreme, form a lattice and satisfy the condition of being “Ralwsian” in each partition of the market. The Equitable algorithm can also be used to select a particular matching from the Equitable Set (...) favoring particular agents independent of the side of the market to which they belong. (shrink)

This article utilizes three premises. There are commonly ecologically oriented, naturally selected specialized differences in frequency and/or quality as well as sexually selected differences between the sexes. Sex in the sense of coming together and going apart or going apart and coming together is trade in these naturally selected differences, i.e., there is a mating market in sexual species. While such trade is beneficial to the population as a whole, sexual competition and selection is conflict over the profits (...) of that trade and can be detrimental to the population as a whole. These premises yield a naturally selected sex allocation theory of the possible directions and forms of sexual selection, i.e., one that includes costs as well as frequencies. This can explain conventional sex roles, the sex-role reversed, inter- as well as intrasexual selection, and passive as well as active choice. Any of these alternatives may be over mates, over gametes, or both. A hypothetical example based on density dependence relative to resources is provided, one that suggests that centrioles may be a cytoplasmic resource in males in multicellular animals, and which are the target of active choice and the mechanism of manipulation in passive female choice. As a whole, the approach yields a truly general theory of sexual selection, provides an alternative to the mechanism for Fisher’s principle, and gives a theoretical explanation for Mayr’s biological species definition. (shrink)

This paper provides a new approach to inference to the best explanation based on a new coherence measure for comparing how well hypotheses explain the evidence. It addresses a number of criticisms of the use of probabilistic measures in this context by Clark Glymour, including limitations of earlier work on IBE. Computer experiments are used to show that the new approach finds the truth with a high degree of accuracy in hypothesis selection tasks and that in some cases (...) its accuracy is greater than hypothesis selection based on maximizing posterior probability. Hence, by overcoming some of the problems with the previous approach, this work provides a more adequate defence of IBE and suggests that IBE not only tracks truth but also has practical advantages over the previous approach. Applications of the new approach to parameter estimation and model selection are also explored. (shrink)

Sound is an inherent component of the environment that provides conditions and information necessary for many animal activities. Soniferous species require specific acoustic and physical conditions suitable for their signals to be transmitted, received, and effectively interpreted to successfully identify and utilize resources in their environment and interact with conspecifics and other heterospecific organisms. We propose the Acoustic Habitat Hypothesis to explain how the acoustic environment influences habitat selection of sound-dependent species. We postulate that sound-dependent species select and (...) occupy habitats with unique acoustic characteristics that are essential to their functional needs and conducive to the threshold of sound frequency they produce and detect. These acoustic habitats are based on the composition of biophony, geophony, and technophony in the soundscape and on the biosemiotics mechanisms described in the eco-field hypothesis. The Acoustic Habitat Hypothesis initiates questions of habitat selection that go beyond the physical attributes of the environment by applying ecoacoustics theory. We outline the theoretical basis of the Acoustic Habitat Hypothesis and provide examples from the literature to support its assumptions. The concept of acoustic habitats has been documented in the literature for many years but here, we accurately and extensively define acoustic habitat and we put this concept into a unified theory. We also include perspectives on how the Acoustic Habitat Hypothesis can stimulate a paradigm shift in conservation strategies for threatened and endangered species. (shrink)

Humans appear to follow normative rules of inductive reasoning in "premise diversity tasks" that is, they know that dissimilar rather than similar evidence is better for generalising hypotheses. In three experiments, we use a "hypothesis limitation task" to compare a related inductive reasoning skill knowing how to limit hypotheses by using a negative test strategy. Participants are told that one category member has some property (e.g. Dogs have a merocrine gland) and are asked what evidence they would test to (...) ensure that either all (generalisation) or only (limitation) category members have that property (e.g. All/Only mammals have merocrine glands; tests: wolf, bull, crocodile). Despite participants' reluctance to use negative tests in the Wason 2-4-6 task and other reasoning tasks, participants do use normatively correct negative tests in the hypothesis limitation task as often as they use diverse positive tests in the premise diversity task. Moreover, when given a hypothesis limitation task before a rule evaluation task (similar to the 2-4-6 task), the use of negative tests increases. Thus, when testing hypotheses, people can and do use the right kind of test strategy for the task. (shrink)

In Darwinism's Struggle for Survival Jean Gayon offers a philosophical interpretation of the history of theoretical Darwinism. He begins by examining the different forms taken by the hypothesis of natural selection in the nineteenth century and the major difficulties which it encountered, particularly with regard to its compatibility with the theory of heredity. He then shows how these difficulties were overcome during the seventy years which followed the publication of Darwin's Origin of Species, and he concludes by analysing (...) the major features of the genetic theory of natural selection, as it developed from 1920 to 1960. This rich and wide-ranging study will appeal to philosophers and historians of science and to evolutionary biologists. (shrink)

Loss of the Y‐chromosome is a common feature of species with chromosomal sex determination. However, our understanding of why some lineages frequently lose Y‐chromosomes while others do not is limited. The fragile Y hypothesis proposes that in species with chiasmatic meiosis the rate of Y‐chromosome aneuploidy and the size of the recombining region have a negative correlation. The fragile Y hypothesis provides a number of novel insights not possible under traditional models. Specifically, increased rates of Y aneuploidy may (...) impose positive selection for (i) gene movement off the Y; (ii) translocations and fusions which expand the recombining region; and (iii) alternative meiotic segregation mechanisms (achiasmatic or asynaptic). These insights as well as existing evidence for the frequency of Y‐chromosome aneuploidy raise doubt about the prospects for long‐term retention of the human Y‐chromosome despite recent evidence for stable gene content in older non‐recombining regions. (shrink)

In Darwinism's Struggle for Survival Jean Gayon offers a philosophical interpretation of the history of theoretical Darwinism. He begins by examining the different forms taken by the hypothesis of natural selection in the nineteenth century and the major difficulties which it encountered, particularly with regard to its compatibility with the theory of heredity. He then shows how these difficulties were overcome during the seventy years which followed the publication of Darwin's Origin of Species, and he concludes by analysing (...) the major features of the genetic theory of natural selection, as it developed from 1920 to 1960. This rich and wide-ranging study will appeal to philosophers and historians of science and to evolutionary biologists. (shrink)

BackgroundUser selection is an important guarantee for the sustainable development of mobile medical businesses. Under the background of increasingly fierce competition, the decision-making behavior of mobile medical businesses will directly affect the choice of the behavior of users.MethodsThe study constructs the decision-making behavior model of mobile medical business based on the user choice and adds the role of people in government. It uses the game method to explore the relationship between the government, mobile medical business, and users. Finally, it (...) makes an example analysis. Empirical research is conducted to demonstrate the influence of different parameter changes on the results.ResultsThe results show that in the absence of government intervention, users’ choice of filtering information will create a bad environment for mobile medical businesses, and further will be reduced, and the expected utility of businesses will not be affected causing a reduction in expected utility of companies. Similarly, government regulations can effectively improve the mobile medical environment and enhance the expected utility of mobile medical companies.ConclusionThe government needs to formulate relevant laws and regulations to ensure the orderly operation of the mobile medical market and strengthen government supervision. It is necessary to conduct publicity and education to protect the fundamental interests of users and businesses. (shrink)

Observations suggesting the existence of natural antibody prior to exposure of an organism to the corresponding antigen, led to the natural selection theory of antibody formation of Jerne in 1955, and to the two signal hypothesis of Forsdyke in 1968. Aspects of these were not only first discoveries but also foundational discoveries in that they influenced contemporaries in a manner that, from our present vantage point, appears to have been constructive. Jerne’s later hypothesis (1971, European Journal of (...) Immunology 1: 1–9), that antibody-like receptors on lymphocytes were selected over evolutionary time for reactivity with the major histocompatibility complex (MHC) antigens of the species, was a first, but it was incorrect, and was foundational only to the extent that it emphasized the need to explain the Simonsen phenomenon. Although easily construed as derivative of Jerne (1971), the affinity/avidity model of Forsdyke (1975, Journal of Theoretical Biology 52: 187–198), which predicted that cell-surface components, including MHC antigens, would restrict antigen-reactivity by somatically shaping lymphocyte repertoires, was actually an extension of the two signal hypothesis. While presenting a mechanism for the positive selection of lymphocyte repertoires, and explaining the Simonsen phenomenon, the affinity/avidity model was not foundational in that it had to be independently rediscovered. For science to advance optimally we must seek to close temporal gaps so that first discoveries are also foundational. Listening to young scientists may be part of the solution. (shrink)

Health Maintenance Organization (HMO) administrators have been accused of engaging in selective marketing. That is, through such strategies as tailoring the benefits package of the program or advertising in styles or in media that do not appeal to certain undesirable audiences, the administrator can minimize the percentage of persons in the HMO who are heavy users of health care services.By means of analyzing what insurance is (philosophically) and what it means for something to be a free market commodity, the (...) author argues that, as long as American society chooses to regard health insurance as a commodity or service of the free market, the use of such strategies is within the moral rights of health administrators. (shrink)

The cheater-detection (CD) hypothesis suggests that people who otherwise perform poorly on the Wason selection task perform well when the task is couched in cheater-detection contexts. We report three studies with new selection problems that are similar to the originals but that question the CD hypothesis. The first two studies document a pattern heretofore attributed to CD mechanisms, namely good performance with “regular” rules and inferior performance with “switched” rules, all in problems that lack a cheater-detection (...) context. The final study finds an interaction: not only is good performance elicited on non-CD problems, but poor performance is found in the context of CD problems. Performance on the selection task cannot be predicted based on the presence or absence of cheater-detection contexts, which brings into question the need to invoke a specialised cheater-detection module. (shrink)

Universal Grammar (UG) can be interpreted as a constraint on the form of possible grammars (hypothesis space) or as a constraint on acquisition strategies (selection procedures). In this response to Herschensohn we reiterate the position outlined in Epstein et al. (1996a, r), that in the evaluation of L2 acquisition as a UG- constrained process the former (possible grammars/ knowledge states) is critical, not the latter. Selection procedures, on the other hand, are important in that they may have (...) a bearing on development in language acquisition. We raise the possibility that differences in first and second language acquisition pertaining to both attainment of the end-state and course of development may derive from differences in selection procedures. We further suggest that for these reasons age effects in the attainment of nativelike proficiency must necessarily be separated from UG effects. (shrink)

This study considers the relationship between perceptions of ethical behavior and the demographic characteristics of sex, age, education level, job title, and job tenure among a sample of marketing researchers. The findings of this study indicate that female marketing researchers, older marketing researchers, and marketing researchers holding their present job for ten years or more generally rate their behavior as more ethical.

Minsky proposed classifying firms in three categories: hedge finance units which borrow no more than they are able to service in interest and principal out of operating cash flows, speculative finance units which are overleveraged to the point where they can service interest on their debt out of operating cash flows, but cannot repay the principal, and thus must continually roll over their existing debt, and Ponzi finance units, whose operating cash flows are inadequate even to service interest on their (...) debt. In Minsky’s financial instability hypothesis protracted prosperity leads endogenously to firms overleveraging themselves and transforming a market dominated by hedge finance into one dominated by speculative and Ponzi finance. Since Ponzi finance units are forced to sell off assets to service their existing interest payments, once the market is sufficiently dominated by Ponzi finance units, this creates an oversupply of assets offered for sale, and the resulting debt deflation causes a financial crisis and drastic shortage of liquidity. It appears this crisis state can be brought about by a deceptively low critical mass of Ponzi and speculative finance units. This paper uses a large 2002–2009 quarterly data set of all publicly traded North American firms and foreign firms traded on North American exchanges, a total of 8,905 stocks. Financial ratios are used to classify these firms in each quarter according to Minsky’s FIH categories. Market value is used to weight the categories, and average betas are computed as measures of volatility. Results provide dramatic support for the FIH. The FIH is then reinterpreted in terms of Austrian business cycle theory, which depends on inflationary credit expansion to drive the unsustainable prosperity. According to Minsky’s FIH, unsustainable prosperity emerges endogenously as long periods of economic expansion make borrowers and lenders alike more willing to engage in investment activities for which they fail to see the inherent risk. It becomes clear that this process is amplified and exacerbated by credit expansion. Minsky’s FIH helps flesh out some of the missing dynamics of the malinvestment liquidation phase of ABC theory, and the two views turn out to be surprisingly complementary. (shrink)

The debate on the influence of markets on virtues has focused on two opposite hypotheses: the doux commerce thesis and the self-destruction thesis. Whereas the doux commerce hypothesis assumes that capitalism polishes human manners, the self-destruction hypothesis holds that capitalism erodes the moral foundation of society. This paper will develop a more balanced position by using the virtue ethics developed by Aristotle, which distinguishes several virtues. The research will focus on the question for which virtues the doux commerce (...) or self-destruction thesis is likely to hold. An extensive literature survey shows that market competition tends to stimulate diligence, crowd out temperance, generosity, and sociability, and stimulate envy. The effect on other virtues – i.e. courage, high-spiritedness, justice, and prudence – is ambiguous. (shrink)

Although all natural languages are spoken, there is no accepted account of the evolution of a skill prerequisite to language—control of the movements of speech. If selection applied at sexual maturity, individuals achieving some command of articulate vocal behavior in previous stages would have enjoyed unusual advantages in adulthood. I offer a parental selection hypothesis, according to which hominin parents apportioned care, in part, on the basis of their infants’ vocal behavior. Specifically, it is suggested that persistent (...) or noxious crying reduced care to individuals who would have had difficulty learning complex behaviors, and that cooing and babbling increased social interaction and care as well as control over complex oralmotor activity of the sort required by spoken language. Several different tests of the hypothesis are suggested. (shrink)

In the past two decades, especially after the financial crisis of 2007–09, the literature for examining the availability of integration between the stock exchanges in developed and developing markets has grown. The importance of this topic stems from the significant implications of the linkage between exchange markets on various decisions taken by interested parties, such as policymakers and investors, in the decisions for portfolio diversification. This study examines the relationship between a developing stock exchange index, Amman Stock Exchange Index, and (...) the number of international indices, including S&P 500, NASDAQ, Nikkei, DAX, CAC, and HSI for 2008-2019. To validate the availability of the linkage between the indices, the author includes various tests of a correlation coefficient, stepwise regression analysis, and artificial neural network. Despite the results indicating that the ANN is more efficient than linear regression in investigating the availability of the relationship between ASEI and international indices, stepwise regression and neural network support this relationship. Furthermore, ANN results revealed that the S&P 500 index and year have the most substantial relationship with ASEI. Our research is theoretically and practically important; policymakers and investors can benefit from our findings. Future studies may explore the effect of different international stock market indices on ASEI or other developing markets. Further studies can use macroeconomic factors to build prediction models for stock market indices. (shrink)

Human cooperation is highly unusual. We live in large groups composed mostly of non-relatives. Evolutionists have proposed a number of explanations for this pattern, including cultural group selection and extensions of more general processes such as reciprocity, kin selection, and multi-level selection acting on genes. Evolutionary processes are consilient; they affect several different empirical domains, such as patterns of behavior and the proximal drivers of that behavior. In this target article, we sketch the evidence from five domains (...) that bear on the explanatory adequacy of cultural group selection and competing hypotheses to explain human cooperation. Does cultural transmission constitute an inheritance system that can evolve in a Darwinian fashion? Are the norms that underpin institutions among the cultural traits so transmitted? Do we observe sufficient variation at the level of groups of considerable size for group selection to be a plausible process? Do human groups compete, and do success and failure in competition depend upon cultural variation? Do we observe adaptations for cooperation in humans that most plausibly arose by cultural group selection? If the answer to one of these questions is “no,” then we must look to other hypotheses. We present evidence, including quantitative evidence, that the answer to all of the questions is “yes” and argue that we must take the cultural group selection hypothesis seriously. If culturally transmitted systems of rules (institutions) that limit individual deviance organize cooperation in human societies, then it is not clear that any extant alternative to cultural group selection can be a complete explanation. (shrink)

Hayek’s social theory of evolution suggests that market liberal morality is adaptive for social groups. He justified the evolutionary superiority of market liberalism by asserting that groups operating under a market liberal morality would have a higher capacity to expand and reproduce than groups with alternative tribal moralities. Thus, market liberal groups would be favoured through cultural and genetic group selection. But in fact, market liberal morality reveals maladaptive tendencies and remains insufficiently powerful to (...) create adaptive social groups. Hayek’s dismissal of moral tribalism in favour of market liberal morality is found to underestimate the importance of tribal goals in the evolutionary system. (shrink)