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We study alternative methods of assigning scarce resources to individuals who may be liquidity-constrained. Selling the resources via auctions is increasingly popular, but that method may produce an inefficient allocation when agents are liquidity constrained. A simple non-market scheme such as random assignment does better, if resale is allowed, since individuals with a high valuation but low liquidity are more likely to be assigned initially, and recipients with low valuations will resell to those with high valuations. Similarly, a need-based assignment scheme favoring those with low liquidity enhances welfare. Lotteries with entry fees could also be desirable. The optimal mechanism displays features of the non-market schemes such as in-kind and cash subsidies.
