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Orly Sade, Charles Schnitzlein, Jaime Zender

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An experimental approach is used to examine the performance of three different multi-unit auction designs: discriminatory, uniform-price with fixed supply, and uniform-price with endogenous supply. We find that the strategies of the individual bidders and the aggregate demand curves are inconsistent with theoretically identified equilibrium strategies. The discriminatory auction is found to be more susceptible to collusion than are the uniform-price auctions, and so contrary to theoretical predictions and previous experimental results the discriminatory auction provides the lowest average revenue. Consistent with theoretical predictions, bidder demands are more elastic with reducible supply or discriminatory pricing than in the uniform-price auction with fixed supply. Despite a lack of a priori differences across bidders, the discriminatory auction results in significantly more symmetric allocations.

Maya Haran Rosen , Orly Sade

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Define contribution mechanism combined with a dynamic job market can affect the sum of retirement savings and the choices of plans and products. Hence, it is important for regulators to engage servers to manage the accounts they accumulate over the years. In 2013-2014 the Israeli regulator reached out to the population, recommending the use of a website to help individuals find inactive retirement savings accounts and close them (withdraw the savings or transfer them to active accounts). The government's efforts did not result in the closure of most of the inactive accounts. Proprietary data indicate that those who closed the inactive accounts live in central locations with a higher socioeconomic index. Survey data indicate that those who lacked financial literacy and confidence in their financial knowledge were less likely to take financial actions. Using a controlled field experiment, we also provide evidence that an intervention with a human touch can promote greater involvement.