Subject
population
38
politics
34
labour market
31
environmental protection
29
political aspect
28
building
27
national income accounting
27
traffic
27
economic policy
22
trade
18
finance
17
forestry
16
price
16
wages
16
agriculture
14
agronomy
14
science policy
13
training, education
12
economic development
11
foreign trade
11
health
11
economic trend
10
research policy
10
statistics
10
future aspect
9
government policy
9
national economy
9
society
9
history
8
social policy
8
Deutscher Bundestag
7
European Union
7
world economy
7
environmental policy
6
area planning
5
nuclear politics
5
social aspect
5
developing country
4
environment
4
global aspect
4
international aspect
4
sociology
4
technology transfer
4
Europe
3
climatic change
3
communication
3
company profile
3
health care
3
management
3
market economy
3
more ...