Abstract

This short article is a commentary to ‘Vulnerability in Research Ethics: A way forward’ from Margaret Meek Lange, Wendy Rogers and Susan Dodds. In their article they describe and accept my criticisms of the subpopulation approach to vulnerability and my analysis of vulnerability based on layers, but they suggest going beyond it using a taxonomy to classify layers of vulnerabilty. I argue that a) we do not need a taxonomy to classify vulnerabilities, b) the authors do not provide an adequate or successful taxonomy, and c) they are unable to link their taxonomy to specific obligations. Thus I propose avoiding an approach that requires taxonomies, and suggest instead using some characteristics of layers of vulnerability