Subject of the thesis*, of which large parts are presented here, is the relationship between social structures and philanthropy that takes place in that context. With explicit theoretic relevance this is researched based on the case Kiva.org. This website hosts a platform on which philanthropic micro credit transactions take place. The research question is: “What is the effect of teams on lending behavior and how can this be explained?”. Based on exploratory literature research, four mechanisms are found eligible to explain an effect of teams on lending behavior. The hypothesized working of the mechanism efficacy can be tested through statistical tests for a modelling effect on team members by team captains. Drawing on these conclusions, the research question is specified to “What is the effect of lending by a team captain on lending by team members?”. Linear mixed model analysis is done on a data set constructed based on data from the Kiva.org API. These analysis show that team membership does not effect lending frequency. Team membership does significantly effect lending amount (increase of 4.9% [p= .000] in lending amount for each team joined). This effect coincides with a significant effect of time and the interaction effect of that with team membership. Per day, lending amount decreases with 0.19% [p= .022]. The interaction effect of time with team membership describes that the change in lending amount due to an extra team membership decreases per day with an estimated 0.05% [p = .000]. No modelling effect on team members by team captains is found for loan amount. This study shows no evidence for a modelling effect of team captains on team members on Kiva.org.


* I extend my gratitude to drs. Bert Jetten en dr. Ferry Koster for their professional support and patience during the writing of this thesis. I want to say thanks to Sander van der Merwe as he proved to be indispensable as technical support regarding the development of code for data collection and data analysis. My thanks extends to Kiva.org, helpfully represented by Martin Butt. I thank Jiska de Waard for her moral support and critical reviews of the concept versions of this thesis. Finally I thank my parents for providing me with the opportunity to partake in this education.

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