Institutional Affiliation: London School of Economics
|Task Specialization in U.S. Cities from 1880-2000|
with , : w18715
We develop a new methodology for quantifying the tasks undertaken within occupations using over 3,000 verbs from more than 12,000 occupational descriptions in the Dictionary of Occupational Titles (DOTs). Using micro-data from the United States from 1880-2000, we find an increase in the employment share of interactive occupations within sectors over time that is larger in metro areas than non-metro areas. We interpret these findings using a model in which reductions in transport and communication costs induce urban areas to specialize according to their comparative advantage in interactive tasks. We presenting suggestive evidence relating increases in employment in interactive occupations to improvements in transport and communication technologies. Our findings highlight a change in the na...
Published: TASK SPECIALIZATION IN U.S. CITIES FROM 1880–2000 Guy Michaels London School of Economics Ferdinand Rauch University of Oxford Stephen J. Redding Princeton University and NBER, Journal of the European Economic Association Preprint prepared on 18 January 2018 using jeea.cls v1.0 citation courtesy of
|Has ICT Polarized Skill Demand? Evidence from Eleven Countries over 25 years|
with , : w16138
OECD labor markets have become more "polarized" with employment in the middle of the skill distribution falling relative to the top and (in recent years) also the bottom of the skill distribution. We test the hypothesis of Autor, Levy, and Murnane (2003) that this is partly due to information and communication technologies (ICT) complementing the analytical tasks primarily performed by highly educated workers and substituting for routine tasks generally performed by middle educated workers (with little effect on low educated workers performing manual non-routine tasks). Using industry level data on the US, Japan, and nine European countries 1980-2004 we find evidence consistent with ICT-based polarization. Industries with faster growth of ICT had greater increases in relative demand for hi...
“Has ICT Polarized Skill Demand? Evidence from Eleven Countries over 25 Years” (with Guy Michaels and Ashwini Natraj), CEP Discussion Paper No. 987. Forthcoming , Review of Economi cs and Statistics March 2014, Vol. 96, No. 1, Pages 60-77
|Do Oil Windfalls Improve Living Standards? Evidence from Brazil|
with : w15550
We use variation in oil output among Brazilian municipalities to investigate the effects of resource windfalls. We find muted effects of oil through market channels: offshore oil has no effect on municipal non-oil GDP or its composition, while onshore oil has only modest effects on non-oil GDP composition. However, oil abundance causes municipal revenues and reported spending on a range of budgetary items to increase, mainly as a result of royalties paid by Petrobras. Nevertheless, survey-based measures of social transfers, public good provision, infrastructure, and household income increase less (if at all) than one might expect given the increase in reported spending. To explain why oil windfalls contribute little to local living standards, we use data from the Brazilian media and feder...
Published: Francesco Caselli & Guy Michaels, 2013. "Do Oil Windfalls Improve Living Standards? Evidence from Brazil," American Economic Journal: Applied Economics, American Economic Association, vol. 5(1), pages 208-38, January. citation courtesy of