How do for-profit and not-for-profit hospitals differ? We consider one dimension: the shifting of a patient's diagnostic related group (DRG) to one that yields a greater reimbursement from the Medicare system, also known as upcoding. It has played a major role in recent federal lawsuits against...

Many observers believe current aging baby boomers are woefully unprepared for retirement. Others raise the prospect that Americans are saving too much for retirement. This paper attempts to reconcile these contrasting views using a simple life cycle model and a more sophisticated retirement...

Do housing price fluctuations play an important role in the economic security of retirees, or is housing wealth just a sideshow to the determination of consumption and saving? Using panel data on saving from the Panel Study of Income Dynamics, and aggregate time- series data, I find that shifts...

Recent legislative proposals have included restoring Individual Retirement Accounts (IRAs) to their pre-1987 eligibility rules. Whether IRAs are simply tax windfalls with no effect on saving, or whether IRAs stimulate saving, is a crucial issue in evaluating the effectiveness of such proposals....

The efficient markets hypothesis has dominated modern research on asset prices. Asset prices and their intrinsic values differ in inefficient financial markets but difficulties in the measurement of intrinsic value greatly complicate market efficiency tests. Reflections on the measurement of...

Housing assets comprise nearly one-third of household wealth rot effectively escape income taxation. When housing is included in the life cycle model, the capital income tax is shown to be far more distortionary than previously thought. The reason is that capital income taxation stimulates the...

The recent appreciation in housing value can have large effects on aggregate saving. This paper uses a simulation model to show that aggregate saving will decline substantially if life cycle homeowners spend down their housing windfalls. Homeowners with a bequest motive, however, may save more...

In his classic 1957 study of hybrid corn, Griliches emphasized the importance of economic incentives and profitability in the adoption of new technology, and this focus has been continued in the economics literature. But there is a distinct literature with roots in sociology emphasizing the...

Has U.S. health care for the elderly become more equitable during the past several decades? When inequality is measured by Medicare expenditures, the answer is yes. During 1987-2001, low income households experienced an increase of 78 percent ($2624) in per capita expenditures, double the...

An extensive literature has documented racial, ethnic, and socioeconomic disparities in health care and health outcomes. We argue that the influence of geography in medical practice needs to be taken seriously for both the statistical measurement of racial disparities, and in designing reforms...