The paper investigates the relative importance of trade and immigration for earnings and job mobility of German male workers. Using panel data, changes of workplaces within the firm as between the firms are separated from occupational changes. Various subgroups are investigated, differentiating...

Natives often fear labor market competition of foreigners, as they may induce declining wages and rising unemployment as in the case of natives and immigrants being substitutes. However, there is also the potential that they are complements, producing positive wage and employment effects. This...

Native blue collar wokers often fear the competition of foreigners, as they may induce declining wages and rising unemployment. This has to be expected if natives and immigrants were substitutes. Substitutability might even be greater between foreign labor already in Germany and those newly...

In their seminal study on inter-industry wage differentials, Krueger and Summers (1988) expressed estimated industry differences as deviations from a hypothetical employment-share weighted mean. Virtually the whole labor literature has followed their approach, yet most studies avoid calculating...