Our article addresses the question how to assess and measure the value or price of knowledge, and probes the issue from a variety of social scientific and practical perspectives. Against the background of a sociological concept of knowledge, economic, political, social, and juridical perspectives that may lead to a price of knowledge are discussed. We observe that knowledge is seen to play an ever greater role within as well as across economies and politics; that its embodiment makes it difficult to (...) divorce it from its carriers; and that knowledge is deeply entrenched in questions of social relations and stratification. As such, it is cannot be captured in a straightforward manner, especially given the persistent stand-off between its individual, economic, and public relevancies and benefits. A simple arithmetic of the price of knowledge fails. (shrink)