Financial Times:
Like great coffee, good ideas take time to percolate
2 February 2018
A decade ago, economists at Berkeley, Stanford and the World Bank conducted a randomised trial in which the bank paid for some textile factories in Mumbai to receive consulting advice from a global company. These factories tended to have utterly chaotic systems, so help with modern inventory management made a big difference. The factories saw their productivity transformed.More recently, those economists revisited the experiment. How much of the good advice had lasted? Had any of it spread? There was good news and bad news.