SUBJECT
Economic aspects
Agriculture
120
Environmental aspects
37
Economic development
28
Social aspects
28
Economic conditions
24
Agriculture and state
23
Environmental policy
23
Globalization
20
Rural development
20
Pollution
19
Education
18
Population
17
Poverty
17
Roads
16
Sustainable development
16
Economic policy
15
Land use
15
Urbanization
15
Technological innovations
14
Climatic changes
12
Cities and towns
11
City planning
11
Management
10
Water-supply
10
Agricultural development projects
9
Economic development projects
9
Emigration and immigration
9
Forests and forestry
9
Government policy
9
Urban economics
9
History
8
Mathematical models
8
Natural resources
8
Planning
8
Renewable energy sources
8
Rural conditions
8
Finance
7
Growth
7
Regional planning
7
Water resources development
7
Agricultural industries
6
Congresses
6
Evaluation
6
Food supply
6
International economic relations
6
Land reform
6
Migration, Internal
6
Population policy
6
Social conditions
6
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