In this dissertation I examine the effects of sample selection on the probability of stroke among older adults. If study subjects are selected into the sample based on some non-experimental selection process, then statistical analysis may produce inconsistent estimates.Chapter 1 develops a model...

This study considers the dependence between functional decline and depression in a nationally representative sample of older Americans from the Survey on Assets and Health Dynamics among the Oldest Old (AHEAD) covering the years from 1993 to 2002. Previous research has shown that depression is a...

Embarking from the concept of uniform payoff security (Monteiro P.K., Page F.H, J Econ Theory 134: 566-575, 2007), we introduce two other uniform conditions and then study the existence of mixed strategy Nash equilibria in games where the sum of the payoff functions is not necessarily upper...

With farms cultivating tens or hundreds of thousands of hectares, Ukraine is often used to demonstrate the existence of economies of scale in modern grain production. Panel data analysis for all the country’s farms with more than 200 hectares in 2001-2011 suggests that higher yields and...

This paper is aimed at widening the scope of applications of majorized correspondences. A new class of majorized correspondences -- domain U-majorized correspondences -- is introduced. For them, a maximal element existence theorem is established. Then, sufficient conditions for the existence of...

This paper examines the importance of non-monetary dimensions of work in studies of inequality in total returns to work. Relying on the methodological advances in the field of multidimensional inequality and using the representative sample of Ukrainian industrial establishments over the period...

Cities in transition face a unique set of challenges that came forth due to interplay of the legacy of socialist urban policies and transition to the market economy. The socialist urban policies restrained growth of the largest cities and distorted the spatial equilibrium towards more uniform...

The focus of this paper is on developing geometric sufficient conditions for the existence of a mixed strategy Nash equilibrium for both diagonally transfer continuous and better-reply secure games. First, we show that employing the concept of diagonal transfer continuity in place of...