Economist George Borjas writes: …natives could have done. The demolition of the narrative that large numbers of immigrants can enter a labor market without having much of an effect on native employment opportunities continues apace.
The new paper by Christian Dustmann, Uta Schönberg, and Jan Stuhler looks at what happened in some German labor markets after the fall of the Berlin Wall. It turns out that German localities bordering Czechoslovakia were affected by a policy that allowed some Czech workers to commute to jobs in Germany, but did not grant those workers any type of residency rights. The amount of commuting was substantial, “averaging to about 10% of local employment in municipalities closest to the border.”
So what happened?
On average, the supply shock leads to a moderate decline in local native wages and a sharp decline in local native employment.These average effects mask considerable heterogeneity across groups…A 1 percentage point increase in the inflow of Czech workers relative to employment in the baseline has led to about a 0.13 percent decrease in native wages, a 0.93 percent decrease in native local employment…A 1 percentage point increase in the employment share of Czech workers decreases the local wages and employment of unskilled natives by 0.20 and 1.37 percent, respectively, but of skilled natives by only 0.11 and 0.50 percent.