經濟學與捐贈、義工行為：台灣的實證研究

Economics, Donations and Volunteering Behavior:Empirical Evidence from Taiwan

陳姵含(Pei-Han Chen)

指導教授 ： 江莉莉

淡江大學/商學院/經濟學系碩士班/碩士(2010年)

https://doi.org/10.6846/TKU.2010.00250

摘要

經濟學認為個人是理性的自利者，他們會理性的根據充分的資訊而追求個人效用極大化。追求最大效用的人，其利他的行為是基於自利的動機，因此，不會在沒有酬償的情況下從事利他行為。但是在現實社會中，能看到人們對於慈善捐贈及公共事務有所關心。因此本文希望了解到經濟學自利之假設是否完全正確，以及哪些因素會影響捐贈與當義工之選擇。首先，本文根據 Duncan（1999）的理論基礎，建構ㄧ個混合動機且存在溫暖光芒的捐贈與做義工之決策模型，推導出人們最適選擇有四種情形：一為個人只從事義工服務而不捐贈；二為個人只捐贈而不從事義工服務；三為捐贈金錢與從事義工服務同時進行；第四種是個人既不選擇捐贈亦不從事義工服務。
另外，在實證方面，本文使用2003年「社會發展趨勢」與2004年「台灣社會變遷」資料庫，並且設立multinominal logit model分析哪些因素影響個人從事捐贈或義工的選擇行為。再以tobit model估計，影響捐贈者捐贈金額的數量及參與義工時數的因素。實證結果發現女性、年齡較長、教育程度較高、已婚的人、政府福利支出愈低對於捐贈與當義工較活絡。此外，擁有經濟學背景的人較無意願當義工，但是，我們無法以這項結果主觀的判斷學過經濟學的人是出自於自利的心態，因為有可能實證模型忽略其他的因素，如Carter（1991）與Frank（2000）等認為，學習效果、個人的價值觀及認知等，皆會影響此人的利他行為。最後，本文根據資料庫裡的捐贈動機放入實證模型當中進行分析，結果皆顯示會從事捐贈或當義工的人，其動機是來自於純粹利他與非純粹利他。換言之，社會上並不像是經濟學所言，人們對於任何事情都是以自利為出發點，而是會因為某種目的或是同情心、憐憫心而從事利他的行為。

關鍵字

捐贈 ； 義工 ； 利他 ； multinominal logit model ； tobit model

並列摘要

According to Economics, person’s altruistic behavior is still rooted in self-interest; therefore, altruistic behavior won’t be conducted without any reward following behind. However, in reality, we do see people show their concerns about charity and public affairs. Accordingly, the thesis aims to scrutinize that if the self-interest hypothesis in Economics is totally correct and that what will influence donation and voluntary behavior. First of all, basing on Duncan（1999）, the thesis contructs a model of donation and volunteering with multi-motivation and warm glow. The thesis reaches a conclusion that there are four optimal choices in the model: first, one chooses to be volunteer rather than donation. In the second situation, an individual prefers donation to volunteering. In another situation, one will do both at the same time. In the last situation, an individual chooses neither donation nor voluntary work.
Moreover, the thesis uses two databases, Survey of Social Development Trend in 2003 and Taiwan Social Change Survey in 2004, to do empirical analyses. Besides, a multinominal logit model is used to analyze the factors influencing one’s optimal choices of donation and volunteering. A tobit model is adapted to investigate what influences the amount of donation and the hours of volunteering. The empirical results show that females, elders, the married and people with high education have more motivations to donate and be volunteers. On the other hand, the policy of government will also influrnce one’s optimal choices and the result indicates the more government expenditure on welfare is, the less one’s will of donation and volunteering is. Besides, people with Economics background have less motivation to be volunteers. At last, the research on the motivation of altruistic behavior comes to the conclusion that people’s motivation is out of pure altruism and impure altruism. As a result, the statement that people do anything out of self-interest, as Economics indicates, is not necessary because the motivation of altruistic behavior may come out of sympathy, compassion, some other factors and so on.

並列關鍵字

donation ； volunteer ； altruistic ； multinominal logit model ； tobit model

參考文獻

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