
How can we know if an economic policy is achieving its stated objective?
Randomized controlled trials (RCT's) take two groups, provide one with the 'solution' and see if economic benefits ensue.
The London School of Economics and Political Science is an academic institution that has a significant impact on policy and practice worldwide through the development, criticism and dissemination of ideas. It is key to research, education and policy on environment and climate change, global finance, cities, economic growth and development, inequality, the economics of global health, and public participation. Its research and teaching span the social sciences and related professional fields, such as law, management and social policy.
Randomized controlled trials (RCT's) take two groups, provide one with the 'solution' and see if economic benefits ensue.
Numerous surveys have shown that people are usually positive about their own personal situation, but negative or gloomy about prospects for their country.

