manbetx20客户端下载 学

Economists are overly reliant on rules
manbetx20客户端下载 学家不能过于依赖原则

Causal theories may help simplify the world, but reality is far more complex
帕里克:因果理论或许有助于简化理解,但现实远比理论复杂。

Across the developing world some women still walk miles each day in order to fetch fresh water for their families. Building wells, to reduce the risk of waterborne illness and give women back their time, is therefore a popular project among development agencies. Yet these seemingly useful initiatives can sometimes fail.

在整个发展中世界,一些妇女每天仍需步行数英里为家人取水。因此,打井是许多发展机构青睐的项目,既可以减少水媒疾病风险,也可以节约妇女的时间。然而,这些看似有用的举措有时也会失败。

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