This paper investigates the shift in demand away from unskilled and toward skilled labor in U. S. manufacturing over the 1980s. Production labor-saving technological change is the chief explanation for this shift. That conclusion is based on three facts: (1) the shift is due mostly to increased use

Abstract not found

The last few decades have seen a spectacular integration of the global economy through trade. The rising integration of world markets has brought with it a disintegration of the production process, however, as manufacturing or services activities done abroad are combined with those performed

on consistent estimates of the input coefficients. In the second step, I identify the impact of trade on plants’ productivity in a regression framework allowing variation in productivity over time and across tradedand nontraded-goods sectors. Using plant-level panel data on Chilean manufacturers, I find

This paper develops a simple model that shows how a country can endogenously become differentiated into an industrialized "core" and an agricultural "periphery. " In order to realize scale economies while minimizing transport costs, manufacturing firms tend to locate

Solving machine-loading problem of a flexible manufacturing system with constraint-based genetic algorithm

The development of genetic algorithms for the finite capacity scheduling of complex products, with multiple levels of product structure

Our capabilities of both generating and collecting data have been increasing rapidly in the last several decades. Contributing factors include the widespread use of bar codes for most commercial products, the computerization of many business, scientific and government transactions and managements

the production as well as the

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