id author title date pages extension mime words sentence flesch summary cache txt 5x21td9964w Hau Nguyen Three Essays in the Economics of Vulnerable Populations 1904 .txt text/plain 313 12 46 Many studies have assessed the direct impact of Part D on prescription drug utilization, medical spending, and the treated medical conditions, but none has evaluated the effects of Part D on the utilization of seemingly-unrelated services such as preventive health measures. The second chapter provides an analysis of how seniors' labor supply responds to health shocks experienced by their spouses. cache/5x21td9964w.txt txt/5x21td9964w.txt