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"Growing international migration and diverse characteristics of migrant populations make internationally comparable high-quality data on migrants essential. Regular update of these data is crucial to capture the changes in size and composition of migrant populations. This document presents the first results of the update of the Database on Immigrants in OECD Countries (DIOC) for 2010/11. It describes immigrant and emigrant populations by socio-demographic characteristics and labour market outcomes in the OECD, and shows their evolution in the past decade. It also provides updated emigration rates and brain drain figures..."

"Researchers in many fields, such as demography, economics, and sociology, have established various data collection methodologies and principles to answer a range of academic and policy questions on migration. Although the progress has been impressive, some basic challenges remain. This paper addresses some basic, yet fundamental, questions on identification of international migrants and how their various demographic, personal, and human capital characteristics are captured via different data sources. The critical issues are the construction of proper sampling frames in censuses, registers, and surveys and the design of questionnaires in household, labor market, and other relevant surveys. The paper discusses how these data sources can be used to answer policy questions in areas such as labor markets, education, or poverty. The focus is on how some of the existing shortcomings in availability, quality, and relevance of migration data can be overcome via improvements in data collection methods."

"In this paper, we simulate the labor market effects of net immigration and emigration during the 1990's in all OECD countries. To accomplish this, we are the first to employ a comprehensive database of migrant stocks, grouped by education level and country of origin/destination, for the years 1990 and 2000. Due to the much higher international mobility of college graduates, relative to all other individuals, we find that net migration flows are college-intensive, relative to the population of non-migrants. Using the consensus aggregate model of labor demand and supply we simulate the long-run employment and wage effects of immigration and emigration. We use a range of parameter values spanning most of the estimates in the literature. In all cases we find that immigration had a positive effect on the wage of less educated natives. It also increased or left the average native wages unchanged and had a positive or no effect on native employment. To the contrary, emigration had a negative effect on the wage of less educated native workers and it contributed to increase within country inequality in all OECD countries. These results still hold true when we correct for the estimates of undocumented immigrants, for the skill-downgrading of immigrants, when we focus on immigration from non-OECD countries, and when we consider preliminary measures of more recent immigration flows for the period 2000-2007. "

"This article discusses options to facilitate movement of workers between high-income and developing countries within the framework of trade agreements, focusing on the European Union's partnership agreements with neighbouring countries. Existing frameworks for co-operation offer the possibility of expanding temporary rather than longer-term or permanent movement of workers since extant trade agreements provide scope for negotiating specific market access commitments for services, including those delivered through the cross-border movement of natural persons. Even though the potential for such ‘embodied' trade in services will not be anywhere near what would be associated with substantial liberalization of migration regimes, furthering the services trade dimension in the European Union's trade agreements offers significant potential Pareto gains. For the partner countries these gains from temporary movement of service providers are both direct – through greater employment and revenue from providing services in the European Union – and indirect – by helping to increase and sustain higher growth at home."

"In this paper, we simulate the long-run effects of migrant flows on wages of high-skilled and low-skilled non-migrants in a set of countries using an aggregate model of national economies. New in this literature we calculate the wage effect of emigration as well as immigration. We focus on Europe and compare the outcomes for large Western European countries with those of other key destination countries both in the OECD and outside the OECD. Our analysis builds on an improved database of bilateral stocks and net migration flows of immigrants and emigrants by education level for the years 1990 through 2000. We find that all European countries experienced a decrease in their average wages and a worsening of their wage inequality because of emigration. Whereas, contrary to the popular belief, immigration had nearly equal but opposite effects: positive on average wages and reducing wage inequality of non-movers. These patterns hold true using a range of parameters for our simulations, accounting for the estimates of undocumented immigrants, and correcting for the quality of schooling and/or labor-market downgrading of skills.In terms of wage outcomes, it follows that prevalent public fears in European countries are misplaced; immigration has had a positive average wage effect on native workers. Some concerns should be focused on the wage effect of emigration, instead."

"The labor force of each industrial country is being shaped by three forces: ageing, education and migration. Drawing on a new database for the OECD countries and a standard analytical framework, this paper focuses on the relative and aggregate effects of these three forces on wages across different skill and age groups over 2000 to 2010. The variation in the age and educational structure of the labor force emerges as the dominant influence on wage changes. The impact is uniform and egalitarian: in almost all countries, the changes in the age and skill structure favor the low-skilled and hurt the highly skilled across age groups. Immigration plays a relatively minor role, except in a handful of open countries, like Australia and Canada, where it accentuates the wage-equalizing impact of ageing and education. Emigration is the only inegalitarian influence, especially in Ireland and a few Eastern European countries which have seen significant outflows of high-skilled labor to Western European Union countries."