Earth & Environmental Sciences
informal sector
100%
comparative advantage
64%
recycling
51%
trade organization
39%
waste management
39%
resource
36%
waste collection
28%
waste recycling
25%
social problem
25%
profit
22%
municipal solid waste
21%
responsibility
20%
solid waste
20%
developing world
18%
communication
16%
health
15%
experiment
8%
Engineering & Materials Science
Recycling
64%
Waste management
39%
Industry
28%
Municipal solid waste
21%
Solid wastes
20%
Medical problems
18%
Developing countries
17%
Profitability
14%
Internet
11%
Communication
8%
Experiments
5%
Business & Economics
Informal Sector
71%
Resources
41%
China
33%
Comparative Advantage
7%
Municipal Solid Waste
5%
Solid Waste Management
5%
Waste Recycling
5%