This paper studies racial/ethnic disparities in awareness of chronic diseases using biomarker data from the 2006 HRS. We estimate a 3-step sequential probit model which accounts for selection into: (1) participating in biomarker collection; (2) having illness (hypertension or diabetes); (3) being aware of illness. Contrary to studies reporting that African-Americans are more aware of having hyp...

Semantic Diffing of Evolving Concurrent Programs Ahmed Bouajjani, Constantin Enea, and Shuvendu Lahiri 1 IRIF, Univ. Paris Diderot, {abou,cenea}@irif.fr 2 Microsoft Research, [email protected] Abstract. We present an approach for comparing two closely related concurrent programs, whose goal is to give feedback about interesting differences without relying on user-provided assertions. This ...

We consider benchmarked empirical Bayes (EB) estimators under the basic area-level model of Fay and Herriot while requiring the standard benchmarking constraint. In this paper we determine the excess mean squared error (MSE) from constraining the estimates through benchmarking. We show that the increase due to benchmarking is O(m−1), where m is the number of small areas. Furthermore, we find an...

Pseudofunctional Delay Tests for High Quality Small Delay Defect Testing. (December 2011) Shayak Lahiri, B.Tech., Motilal Nehru National Institute of Technology, Allahabad, India Chair of Advisory Committee: Dr. Duncan Walker Testing integrated circuits to verify their operating frequency, known as delay testing, is essential to achieve acceptable product quality. The high cost of functional te...

We study the coupled dynamics of the displacement fields in a one-dimensional coupled-field model for drifting crystals, first proposed by Lahiri and Ramaswamy [Phys. Rev. Lett. 79, 1150 (1997)]. We present some exact results for the steady state and the current in the lattice version of the model for a special subspace in the parameter space, within the region where the model displays kinemati...

A graph G is called Bk-VPG (resp., Bk-EPG), for some constant k ≥ 0, if it has a string representation on a grid such that each vertex is an orthogonal path with at most k bends and two vertices are adjacent in G if and only if the corresponding strings intersect (resp., the corresponding strings share at least one grid edge). If two adjacent strings of a Bk-VPG graph intersect exactly once, th...

Emerging market economies in the nineteen nineties have experienced periods of booms followed by collapses in gross domestic product, consumption, traded and nontraded sector output and real exchange rate movements alongside unprecedented movements in foreign investor participation in these economies. An important feature of these episodes is the asymmetry in the pattern of booms and collapses....

This paper analyzes child labor in a fully dynamic model with credit constraints. It considers the long-run and short-run effects of an array of policies like lump-sum subsidy, enrollment subsidy, improvement in primary education and variations in loan market parameters. It is shown that some policies that reduce child labor in the long run may lead to an increase in child labor in the short ru...

A number of techniques for probability sampling without replacement (SWOR) have been suggested, although it is not clear which method is consistently superior in terms of statistical efficiency. Rao and Bayless (1969) empirically studied the stability of estimators of the population total for a variety of methods of unequal probability SWOR when selecting two units per stratum. One of their maj...

Privatization in India is mostly limited to the diffuse sale of minority stakes in firms. Since control rights have not been transferred to private owners it is widely contended that the process has had little impact on firm behavior. We find however that even the sale of minority stakes has a positive impact on firm performance and productivity. As the government remains the controlling owner ...