This paper revisits the question of why more open countries tend to have bigger governments. We replicate successfully the main results of Ram (2009), who rejects the role of country size as an omitted variable. However, several extensions advise against a hasty conclusion: The results differ...

This paper proposes urbanization as a determinant of government size. As people move to cities, their demand for a more de ned set of regulations, but also for basic health, education, and income standards rises. Our theoretical framework determines how the regional distribution of the...

Incomplete markets in overlapping generations leave room for Pareto improvement. We analyze a model with two goods and idiosyncratic shocks. We compare market equilibrium with the constrained efficient equilibrium allocation and demonstrate that, when shocks are symmetric and do not affect all...

In this chapter we survey the voluminous literature on migration affecting trade and the somewhat less developed literature linking aid flows to migration. We aim to guide the reader through the two literatures, highlighting key contributions and identifying important lines of enquiry. Simmering...

Despite the burgeoning empirical literature providing evidence of a strong and robust positive correlation between trade and migration, doubts persist as to unobserved factors which may be driving this relationship. This paper re-examines the trade-migration nexus using a panel spanning several...

Global matrices of bilateral migrant stocks spanning 1960–2000 are presented, disaggregated by gender and based primarily on the foreign-born definition of migrants. More than one thousand census and population register records are combined to construct decennial matrices corresponding to the...

Global matrices of bilateral migrant stocks spanning 1960-2000 are presented, disaggregated by gender and based primarily on the foreign-born definition of migrants. More than one thousand census and population register records are combined to construct decennial matrices corresponding to the...

This paper introduces four versions of an international bilateral migration stock database for 226 by 226 countries and territories. The first three versions each consist of two matrices, the first containing migrants defined by country of birth, that is, the foreign-born population; the second,...

Meta-analyses are becoming a popular tool for supporting benefit transfers, but the availability of studies is a direct consequence of policy issues, research funding, and investigator interest. We investigate fragility versus robustness of the meta-equation by considering sample selection,...

Estimation of economic relationships often requires imposition of constraints such as positivity or monotonicity on each observation. Methods to impose such constraints, however, vary depending upon the estimation technique employed. We describe a general methodology to impose...