Results: Central importance that employment and the labour market have for a region's supply of training places
The number of new training contracts increases primarily when positive changes can be seen on the supply side of regional training place markets (see Model 1 in table). The two most important factors that positively influence the supply of new training places in the respective employment agency district are (1) increases in employment and (2) increases in the number of enterprises that begin providing in-company vocational training for the first time or in the number of enterprises that resume providing in-company vocational training after not having provided training in the previous year. An increase in the stocks of trainees leads to a decline in the number of the training places offered applicants in the following year. The special importance of economic conditions and operational considerations is underscored by the influence exerted by general economic growth. Differences between economic sectors have an effect as well. The larger the share that the service sector constitutes in the respective employment agency district (degree of tertiarisation), the greater the decline in the number of new training places. By contrast, demographic developments, developments in the number of school leavers and training place applicants, and direct labour market conditions at employment agency level do not play a role in the number of new training contracts.
Table: Development of regional training place markets between 1999 and 2008 at employment agency level, by selected variables

The level of trade and industry's overall participation in the provision of in-company vocational training (see Model 2 in table), measured in terms of the changes in the total supply of in-company training places in the employment agency districts, is influenced 0 as in the first analysis 0 primarily by supply-side factors, with the difference that here, first and foremost, growth in the number of enterprises which always provide in-company vocational training is more important for the regional training place market. Enterprises that begin providing in-company vocational training for the first time do not play a role here. The demand side however is certainly important as well because demographic-related, school leaver and training place applicant trends can also be shown to have an influence.
Looking at the possible influence that declines in potential demand could have on a regional training place market, it can be said that training companies increased their number of new training contracts in the respective reporting year whenever it became evident at their employment agency that there would be a decline in the 19-and-younger age cohort which is relevant to demand levels. The greater the decline, the more training contracts were signed.
In this respect, training companies 0 assuming that they take information concerning regional developments into account 0 certainly appear to respond at least in the short-term to coming developments in the number of school leavers. Otherwise, they adjust their provision of in-company vocational training to the current upward or downward demographic movements in their particular region. Based on the analyses conducted here, it could not be determined whether training companies develop plans that extend beyond the coming year, are more investment-oriented or more long-term. In this connection, it is necessary to supplement the remarks made at the start of this article regarding the overall development of the training place market in Germany because the demand-side variables already led to changes during the period under study in the amount of in-company vocational training provided.