クラウドファンディングにおける過去の行為が支援獲得に及ぼす影響：計算社会科学によるクラウドファンディング内部の社会関係資本形成の研究

Previous studies on crowdfunding examined the effects of project’s contents and presentation on success or failure of funding. Since Mollick (2014), effects of founder’s social capital also have attracted much interests. Their considerations are limited to founder’s direct relations (1^st sphere) meaning ‘friends’ who a founder backed or was backed by in the past, and doesn’t pay attentions to founder’s indirect relations (2^nd sphere), that is, ‘friends of friends.’ Then, we observed all the relations (1^st and 2^nd sphere) inside Readyfor, Japanese largest site, with web scraping. Using the data, we made regression analysis by setting the relations as explanatory variables and the success/failure and number of backers as dependent variables. As results, we found that more backers founder X had, more likely X succeeds, and that more backers had a founder who founder X interacted with, more likely X succeeds.