One of the primary motivations behind the establishment of noncontributory pension programs is to allow beneficiaries to retire from the labor force. Yet, as with other unconditional cash transfer schemes, their aggregate effects may be more complex. Using panel data and instrumental variable...

The relationship between Food Stamp Program (FSP) participation and household food insecurity (FI) is investigated using data from the 1996-1997 National Food Stamp Program Survey. Endogeneity of FSP participation is accommodated with an instrumental variables approach. In contrast to other...

We present an expository, general analysis of valid post-selection or post-regularization inference about a low-dimensional target parameter in the presence of a very high-dimensional nuisance parameter that is estimated using selection or regularization methods. Our analysis provides a set of...

This paper addresses the simultaneous determination of fast-food availability on obesity rates through the use of instrumental variables, specifically the number of interstate exits in the county of residence. Using the 2005 Behavioral Risk Factor Surveillance Survey and self-collected data on...

In this paper we design two split-sample score tests for subsets of structural coefficients in a linear Instrumental Variables (IV) regression. Sample splitting serves two purposes - 1) validity of the resultant tests does not depend on the identifiability of the coefficients being tested and 2)...