Big Dams or Sprinkling Cans?

By Paul Polak Everybody in the world knows about big dams. They do irreparable damage to the environment and the  millions of people they displace, but we need to keep building a few of them to feed the nine billion people we expect will live on planet earth when its population stabilizes. Ten years ago, ten world experts both for and against big dams formed the World Commission on Dams and reached a stunning consensus on the path forward, which the World Bank promptly decided to ignore. But there has been no World Commission on Buckets and Sprinkling Cans, although some 50 million poor farmers in Asia…

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Death of Appropriate Technology II : How to Design for the Market

by Paul Polak The single biggest reason that the appropriate technology movement died and most technologies for developing countries never reach scale is that nobody seems to know how to design for the market. Over the past 30 years, I’ve looked at hundreds of technologies for developing countries. Some provided elegant solutions for challenging technical problems. Some were big and clumsy. Some  were far too expensive. Some of were beautifully simple and radically affordable. But only a handful were capable of reaching a million or more customers who live on less than two dollars a day. If you succeed, against all odds, in designing a…

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Want to Scale-Up your Development Project? Make a Bollywood Movie

In the late 1980’s after launching IDE, I knew we had a big problem. We were convinced that treadle pumps, a simple $25 StairMaster device that could earn a net income of $100 a year or more for one-acre farmers could make a huge impact in Bangladesh. And we knew that market forces were the best way to bring them to scale. But how could we put them in the hands of millions of small farmers? We started out by energizing a private sector network of 75 small manufacturers, 2500 village dealers, and 3,000 village well drillers who we trained a three day course with…

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