The economist Amartya Sen has raised concerns over Rawls' emphasis on primary social goods, arguing in "Inequality Reexamined" (1992) that we should attend not only to the distribution of primary goods, but also how effectively people are able to use those goods to pursue their ends. Norman Daniels has wondered why health care shouldn't be treated as a primary good, and some of his subsequent work has addressed this question, arguing for a right to health care within a broadly Rawlsian framework. The philosopher G. A. Cohen, in "If You're An Egalitarian, How Come You're So Rich?" (2000) and "Rescuing Justice and Equality" (2008), criticizes Rawls' avowal of inequality under the difference principle, his application of the principle only to social institutions, and what he sees as Rawls's obsession with using primary goods as his currency of equality.