Persistent productivity gains to rural-urban migrants have been documented by a number ofresearchers. One interpretation of this result is that individuals learn higher value skills incities than they would have learned in less dense areas. Another explanation for this result,however, is that...

As China exhibited unprecedented rapid economic growth ever since its reform andopenness, the development and sources of labor productivity has gradually come to theforefront. This paper studies the development and the source of labor productivity in 31Chinese provinces during the period of...

The role of amenities in the flow of migrants has been debated for some years. This paperadvances an original model of amenities that work through household production instead ofdirectly through the utility function. Area characteristics (amenities) affect householdproduction, causing certain...

In this paper we survey the recent developments in two empirical literatures at the crossroadsof labor and urban economics: Studies about localized human capital externalities (HCE) andabout the urban wage premium (UWP). After surveying the methods and main results of eachof these two...

We develop a method that allows one to compute incomplete-market equilibria routinely forMarkovian equilibria (when they exist). The main difficulty to be overcome arises from the setof state variables. There are, of course, exogenous state variables driving the economy but, in anincomplete...

In this paper we study the integration of production, transportation and storage decisions ina multi plant-distribution center supply chain structure. Multiple plants produce one type ofitem, each of them with different production capacity and costs, and send finished goods tothe distribution...

We consider the single item lot-sizing problem with capacities that are non-decreasing overtime. When the cost function is i) non-speculative or Wagner-Whitin (for instance, constantunit production costs and non-negative unit holding costs), and ii) the production set-upcosts are non-increasing...

Providing a good formulation is an important part of solving a mixed integer program.We suggest to measure the quality of a formulation by whether it is possible tostrengthen the coefficients of the formulation. Sequentially strengthening coefficientscan then be used as a tool for improving...