This study empirically examines a sample of national wireless spectrum assignments for the period 2000-2007 to identify the sources of revenue variations. An econometric model that recognises the censored nature of the sample relates per capita winning bid (per Mhz) values to auction design...

We study the dependence of health insurance availability of near-elderly inpatients in the United States with respect to their ages. We show that the likelihood that near-elderly inpatients are uninsured continuously declines until the early ages of 60 but the trend is reversed for the last few...