中國人民大學漢青經(jīng)濟與金融高級研究院助理教授葉茂亮。哈佛大學博士。同時他有工程學本科學位和工程學，經(jīng)濟學雙碩士學位。中國人民大學葉茂亮研究實驗行為經(jīng)濟，以及包括公共經(jīng)濟學，勞動經(jīng)濟學，發(fā)展經(jīng)濟學和政治經(jīng)濟學在內(nèi)的應(yīng)用微觀經(jīng)濟學。目前他在研究集體行為(例如公共物品的資源供給，協(xié)調(diào)，互信建立，解決社會困境上的合作)，慈善，再分配，公眾輿論(例如不平等和平等的認知，再分配的偏好)，財政聯(lián)邦制和主觀幸福，等領(lǐng)域研究.

　　中國人民大學葉茂亮教授探討漸進的效果，增加投資的持股比例隨時間緩慢而不是立即需要高股權(quán)投資合作建設(shè)用有限次重復(fù)二進制信托(投資)的實驗。中國人民大學葉茂亮理論預(yù)測建立在一種行為重復(fù)博弈模型對受托人的類型(或理性的倒數(shù))不完整的信息。實驗結(jié)果發(fā)現(xiàn)，漸進有助于建立在投資關(guān)系的高風險的合作：委托人的初始投資率是在大爆炸和漸進療法相同，而受托人在漸進治療的更高的初始速度往復(fù)運動帶來更高后續(xù)投資和成功的相互合作的利率。然而，投資，互惠和相互合作的所有治療的比率大幅到底下降(結(jié)束時的游戲效應(yīng))。以下為原文。

　　This paper examines the effect of gradualism -- increasing the stake of investment slowly over time rather than requiring a high stake of investment immediately -- in cooperation building using a finitely repeated binary trust (investment) experiment. Our theoretical predictions build on a behavioral repeated-game model with incomplete information about the type (rational or reciprocal) of trustees. The experimental results find that gradualism helps build high-stake cooperation in the investment relationship: The initial investment rate of trustors is the same in the big bang and gradualism treatments, whereas the higher initial reciprocation rate of the trustees in the gradualism treatment leads to higher rates of subsequent investment and successful mutual cooperation. However, the rates of investment, reciprocation and mutual cooperation for all treatments sharply decrease in the end (“end-of-game” effect).