This paper uses a panel data set of microfinance institutions (MFI) across the world to compare several identification strategies of cost efficiency and economies of scale. Concretely, we contrast the non-parametric Data Envelopment Analysis (DEA) with the Stochastic Frontier Analysis (SFA) and...

Answer -- Creating a technology -- Scientific origins -- US technology push -- Building a market -- Japanese niche markets -- German demand pull -- Making it cheap -- Chinese entrepreneurs -- Local learning -- Doing it again -- Solar as a model to follow -- Applying the model -- Accelerating...

Answer -- Creating a technology -- Scientific origins -- US technology push -- Building a market -- Japanese niche markets -- German demand pull -- Making it cheap -- Chinese entrepreneurs -- Local learning -- Doing it again -- Solar as a model to follow -- Applying the model -- Accelerating...