Dual apprenticeship training is a market-driven form of education at the upper secondary level, taking place in firms as well as in vocational schools. So far, little is known about the impact of the business cycle on the number of apprenticeship programs offered by firms. Using panel-data of Swiss cantons from 1988-2004, we find that the influence of the business cycle is statistically significant, but small in size. Instead, supply of apprenticeship programs is driven to a much greater extent by demographic change. Conversely, the number of first-year high school students is not affected by the business cycle. We find, however, that enrollment increases if the population at age 16 grows, but access to high schools does not become more restricted in times of negative growth.