|
on Sports and Economics |
| By: | Ayumi Igarashi; Yasushi Kawase; Warut Suksompong; Hanna Sumita |
| Abstract: | We study a fair division setting in which a number of players are to be fairly distributed among a set of teams. In our model, not only do the teams have preferences over the players as in the canonical fair division setting, but the players also have preferences over the teams. We focus on guaranteeing envy-freeness up to one player (EF1) for the teams together with a stability condition for both sides. We show that an allocation satisfying EF1, swap stability, and individual stability always exists and can be computed in polynomial time, even when teams may have positive or negative values for players. Similarly, a balanced and swap stable allocation that satisfies a relaxation of EF1 can be computed efficiently. In addition, when teams have nonnegative values for players, we prove that an EF1 and Pareto optimal allocation exists, and such an allocation can be found in polynomial time if the valuations are binary. |
| Date: | 2022–06 |
| URL: | http://d.repec.org/n?u=RePEc:arx:papers:2206.05879&r= |
| By: | Asako Chiba (Tokyo Foundation for Policy); Daisuke Fujii (University of Tokyo); Yuta Maeda (University of Tokyo); Masataka Mori (Middlebury College); Kenichi Nagasawa (University of Warwick); Taisuke Nakata (University of Tokyo); Wataru Okamoto (University of Tokyo) |
| Abstract: | We present a series of quantitative analyses conducted from mid-May of 2021 to mid-June of 2021 that examined the effects of hosting the Tokyo 2020 Olympic and Paralympic Games on the spread of COVID-19 in Tokyo. Our ex-ante quantitative analyses pointed out that (i) the direct effects on the spread of COVID-19 of welcoming Games-related foreign visitors to Japan or allowing spectators in competition venues would be either limited or manageable, but (ii) a festive mood generated by the Games could greatly contribute to the spread of COVID-19 if it led to a decline in people’s willingness to take preventive actions against infection. Ex-post, the key results of our ex-ante analyses are broadly in line with available circumstantial evidence as well as ex-post consensus by public-health experts on how the Games affected the spread of COVID-19 in Tokyo. |
| Date: | 2022–06 |
| URL: | http://d.repec.org/n?u=RePEc:cfi:fseres:cf539&r= |
| By: | Lisa Beck-Werz (Paderborn University) |
| Keywords: | overestimation; gender gap; age; experience; distance running |
| JEL: | D9 J16 Z2 |
| Date: | 2022–07 |
| URL: | http://d.repec.org/n?u=RePEc:pdn:dispap:96&r= |
| By: | Andrea Fazio (University of Pavia, Pavia, Italy); Francesco Scervini (University of Pavia, Pavia, Italy); Tommaso Reggiani (Masaryk University, Brno, Czech Republic) |
| Abstract: | Social media play a relevant role in shaping social attitudes and economic behaviors of individuals. One of the first very well-known examples of social media campaign is the Ice Bucket Challenge (IBC), a charity campaign that went viral on social networks in August 2014 aiming at collecting money for the research on amyotrophic lateral sclerosis (ALS). We rely on UK longitudinal data to investigate the causal impact of the Ice Bucket Challenge on pro-social behaviors. In detail, this study shows that having been exposed to the IBC increases the probability of donating money, and it increases the amount of donating money among those who donate at most £100. We also find that exposure to the IBC has increased the probability of volunteering and the level of interpersonal trust. However, all these results, but the one on the intensive margins of donations, have a short duration, limited to less than one year, supporting the prevalent consensus that social media campaigns may have only short-term effects. |
| Keywords: | Donations, Volunteering, Altruism, Social media campaigns, Ice bucket challenge |
| JEL: | D64 O35 |
| Date: | 2022–07 |
| URL: | http://d.repec.org/n?u=RePEc:mub:wpaper:2022-09&r= |