Helpman

常见例句

Grossman,Gene M.and Elhanan helpman,1991,Innovation and Growth in the Global Economy,Cambridge,MA:MIT Press.
張宇;孟捷;盧荻主編.;高級政治經濟學
Political economics also starts from individual decision making. See Persson and Tabellini (2000), Helpman and Grossman (2001).
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Grossman and Helpman, in particular, model producers as contributing financially to incumbent politicians in return for their providing or maintaining tariff protection.
特別是在格羅斯曼與赫爾普曼設立的模型中，生産者資助了儅權政客，以換取關稅保護的實行或維護。