Interprovincial migration, regional development and state policy in China, 1985-2010

Internal migration in China occurs as a result of both market forces and government interventions. This paper investigates how indicators of migration have changed over the past quarter of a century using data from successive censuses, with particular attention given to the roles of regional economic development and national policy and the effects of age and education on spatial patterns of migration. The results show a surge in migration throughout the period, an increasing concentration of migration destinations and an improvement of migration efficiency prior to 2000, but a decreased focusing of migration during the first decade of the twenty-first century. Widening regional disparity has been responsible for a sharp increase of migration from the interior to the coast, and different national economic growth poles emerged as major migration destinations at different stages of economic reforms. The analyses of age- and education-specific migration flows indicate that young adults were more mobile and more sensitive than older cohorts to interregional economic differentials, and that educated migrants were more concentrated than less-educated migrants since knowledge-based industries were more concentrated than labour-intensive industries. Our findings suggest that massive eastward migration induced by unbalanced economic development and relaxed migration restrictions still persisted in the 2000s, and that the State's recent efforts to alleviate regional inequalities were far from achieving equilibrium in the migration system

Taking technology to task: The skill content of technological change in early twentieth century United States

This paper uses new data on the task content of occupations to present a new picture of the labor market effects of technological change in pre-WWII United States. I show that, similar to the recent computerization episode, the electrification of the manufacturing sector led to a "hollowing out" of the skill distribution whereby workers in the middle of the distribution lost out to those at the extremes. OLS estimates show that electrification increased the demand for clerical, numerical, planning and people skills relative to manual skills while simultaneously reducing relative demand for the dexterity-intensive jobs which comprised the middle of the skill distribution. Thus, early twentieth century technological change was unskill-biased for blue collar tasks but skill-biased on aggregate. These results are in line with the downward trend in wage differentials within U.S. manufacturing up to 1950. © 2013 Elsevier Inc