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posted on 27 December 2017

The Economic Effects Of Restricting Immigration - Lessons From US History

from The Conversation

-- this post authored by Philipp Ager, University of Southern Denmark and Casper Worm Hansen, University of Copenhagen

The issue of immigration - and whether or not to restrict it - is hotly debated. Promising stricter immigration laws was an important pillar of Donald Trump’s 2016 presidential campaign - and it remains one of the Trump administration’s priorities to “protect" US workers and taxpayers.

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This idea reflects the argument that immigrants reduce job opportunities for US workers and cost taxpayers extra money to provide for housing and social assistance. But is this really the case? Understanding whether stricter immigration laws would benefit native workers, through better employment opportunities, less competition for jobs and a lower tax burden is a central research question for labour economists interested in evaluating the economic effects of immigration.

We explored this issue in a recent paper that examined how immigration restrictions influenced the US economy in the 1920s. Indeed, the debate on imposing immigration restrictions to prevent entry of certain ethnic groups into the US is not a new one. In the 1920s, the US changed its open door policy for European immigrants by introducing immigration quotas based on national origins.

A 1921 cartoon about US immigration. Library of Congress

The US president at the time, Calvin Coolidge, signed the Immigration Act of 1924. For him, restrictive immigration was, to a large extent, for economic purposes. It was designed to keep wages and living standards high for both the existing population and the new arrivals that made it through legally.

The quota system restricted immigration from Europe, mainly from southern and eastern European countries. It also banned immigration from Asia - whereas immigration from Mexico and other countries in the Americas remained unregulated. European immigration fell from 4.5m between 1910 and 1914 to around 750,000 between 1925 and 1929 - or in other words to 150,000 immigrants annually. This fundamental change in immigration policy in the 1920s remains unprecedented in US history.

The flow of immigration under the proposed Immigration Act of 1924. Literary Digest, May 10 1924

Winners and losers

The specific design of the new quota system meant that immigration from some European source countries (such as Italy and Russia) was restricted more than from others (such as the UK). Since newly arriving immigrants tend to cluster and move to places with already existing networks, areas with larger pre-existing immigrant communities of affected nationalities (those from Italy or Russia) would expect to receive fewer immigrants after the introduction of the quota system. In light of this, we can evaluate whether immigration during the first half of the 20th century was beneficial for the average American worker and the US economy in general.

We found that natives living in areas more affected by the quota (areas where the level of immigration went down) were actually pushed into lower-wage jobs. For the average affected area, native workers experienced a 2% decline in earnings after the quota system was implemented.

This effect, however, substantially differs by race. While the quota system led to substantial earnings losses for native-born white workers, African-American workers benefited from it. This is due to the fact that the jobs done by white native workers and immigrants each complement the other (think of it in terms of an engineer and a construction worker). African-American workers meanwhile were competing with immigrant workers for jobs.

This finding shows that immigration in the 1920s actually improved the job opportunities for native-born white workers but deteriorated them for African-American workers. Then, when the quota was introduced and the numbers of European migrants went down, African-American job prospects went up, as they replaced the missing immigrant workers in the factories.

As such, native-born workers that have similar jobs as the arriving immigrants are more likely to lose from immigration and are more likely to gain from immigration controls. Indeed, one unintentional consequence (in the eyes of the 1920s policymakers) of the quota system was a narrowing down of the black-white earnings gap in the more affected areas during the first half of the 20th century.

The ConversationClearly changes in immigration policy generate winners and losers. But not the winners and losers that the government might expect. It all depends on how much the native population stands in competition with immigrant workers.

Philipp Ager, Associate Professor of Economics, University of Southern Denmark and Casper Worm Hansen, Associate Professor of Economics, University of Copenhagen

This article was originally published on The Conversation. Read the original article.

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