計(jì)量與數(shù)量經(jīng)濟(jì)學(xué)系2023年春季第五講
發(fā)文時間:2023-05-29

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時間:4月24日14:00-16:00

地點(diǎn):明主729

報(bào)告人:丁思華

講座題目:Link investment substitutability: A factor influencing network formation


研討會摘要

Studies on network formation employ rather different assumptions on link formation and make different predictions. We propose a constant elasticity of substitution (CES) link formation specification that generalizes commonly used link formation assumptions and parametrizes a factor that could affect network formation, namely, link investment substitutability (LIS). We apply this approach to the model by Galeotti and Goyal (2010) that studies public good provision on an endogenously formed network and find that results on equilibria differ significantly depending on whether link investments are substitutes or complements. Additionally, when link investments are complements, we find that LIS governs the unequalness of equilibrium structures. We also explore how LIS influences the relationship between the public good provision of a player and her utility.


主講人介紹

丁思華,劍橋大學(xué)博士畢業(yè),現(xiàn)任南開大學(xué)經(jīng)濟(jì)學(xué)院經(jīng)濟(jì)系助理教授,研究領(lǐng)域?yàn)槔碚撐⒂^經(jīng)濟(jì)學(xué)和網(wǎng)絡(luò)經(jīng)濟(jì)學(xué),研究成果發(fā)表在Games and Economic Behavior。