宾夕法尼亚大学在伦纳德和苏菲·戴维斯的捐赠下，于1967年成立了伦纳德·戴维斯卫生经济学研究所（简称Penn LDI）。该研究所的成立是为了填补医疗保健系统的融资和管理证据的根本空白，是宾夕法尼亚大学在医疗保健服务、健康政策和人口健康方面的研究中心。

研究人员通过协作、跨学科的研究和教育，为所有人实现有效和高效的医疗保健。LDI是同类机构中的第一个研究所，在商业和医学领域架起桥梁，致力于研究卫生经济学。

研究所致力于优化卫生保险和医疗保健，提供高质量的医疗保健；通过更公平的卫生保健系统改善健康并缩小健康差距；研究与新冠肺炎相关的健康和经济影响；改善老年人的健康、福祉和护理；为阿片类药物的使用寻找有效、可持续的解决方案；关注社会实践、结构力量和人口健康。从1967年医疗保险和医疗补助成立以来，研究所旨在创建一个更加公平、强大和可持续的医疗保健系统。

The University of Pennsylvania established the Leonard Davis Institute for Health Economics (Penn LDI) in 1967 with a donation from Leonard and Sophie Davis. Established to fill a fundamental gap in evidence on the financing and management of the health care system, the Institute is Penn's center for research on health care delivery, health policy, and population health.

Researchers work through collaborative, interdisciplinary research and education to achieve effective and efficient healthcare for all. The LDI is the first institute of its kind, bridging the fields of business and medicine and dedicated to the study of health economics.

The Institute works to optimize health insurance and medical care and provide quality physiotherapy care; Improving health and reducing health disparities through more equitable health care systems; Research on the health and economic impacts associated with COVID-19; Improving the health, well-being and care of older persons; Finding effective and sustainable outcomes for opioid use; Focus on social practices, structural strength and population health. Since the inception of Medicare and Medicaid in 1967, the Institute has aimed to create a more equitable, strong, and sustainable health care system.