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The effects of immigration are often localized and context-specific.

我們不試圖把握市場時機。我們試圖買便宜的東西。

數據是寶貴的東西，它將比系統本身更持久。

Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

譯文：做好事就會被人傳遍百世，做壞事就會被人憎惡萬年。賞析：人做好事自然就有美名被傳頌，人做壞事自然就會受人譴責。人做好事不僅給自己積德，更是給子孫后代積福；人做壞事不僅玷污自己的名節，更會傷害到子孫后代。

Transparency builds trust, and trust is the foundation of lasting success.