Economists have long studied how institutional constraints interfere with efficient economic choices, such as when special interests erect barriers to entry in productmarkets.
经济学家长期研究制度约束对有效经济选择的干涉,比如当特别的利率突破屏障进入产品市场的时候。
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Key constraints include poor physical infrastructure, inefficient productmarkets, lack of credit, and weak land and labor markets.