时间：2022年11月10日 14:30

地点：邵逸夫科学馆东二层第六会议室

主讲人一：黄少安

题目：农村土地产权制度变化值得研究的问题

主讲人二：李爱军

题目：Understanding the relationship between universities and sustainability: a new framework of identifying inefficiency sources through new strategy network Data Envelopment Analysis

摘要：To the best of our knowledge, no study on Data Envelopment Analysis (DEA) has considered the role of universities in promoting either economy or sustainability. To do the work, this study proposes a new network structure of education-innovation-economy-environment sustainability system. Methodologically, this study proposes new concepts of strategy-based network DEA, strategy-based Gini coefficient and strategy-based relative weight indicators. Our new concepts are valuable in detecting alternative inefficiency sources and finding out efficient ways to address these sources. To the best of our knowledge, such work cannot be found in the existing studies. Empirically, this study focuses on Chinese provinces from 2007 to 2019. The main conclusions are as follows. First, China experiences a general regress in overall efficiency. Meanwhile, there is significant heterogeneity across research groups and across Chinese provinces. Second, one strategy can help decision makers achieve specific targets, but it generally goes at a cost of overall efficiency. However, it should be noted that one well-deigned strategy may help some DMUs to achieve overall efficiency improvement. Finally, there is growing technology inequality across Chinese provinces. By comparison, stage 1 (education & innovation) has gained more priority relative to stage 2 (economy & environment).  

主讲人二：李若辰

题目：The Competitive Effects of Fixed-Price Contracts under Cost Inflation

摘要：In this paper, we show how risk aversion consumers use fixed-prices contract to hedge uncertain future prices and costs. In equilibrium, the price rank is subject to the level of cost variation and the degree of risk aversion. We show that, after the introduction of fixed-price price, signing the contract allows consumers to pay less money, but staying with the default payment option could save more. The welfare analysis suggests that total welfare is strictly higher in the presence fixed-prices contract, as it mitigates uncertainty and intensifies competition.