Eliciting Demand Information through Cheap Talk: An Argument in Favor of Price Regulations

A firm must decide whether to launch a new product. A launch implies considerable fixed costs, so the firm would like to assess downstream demand before it decides. We study under which conditions a potential buyer would be willing to reveal his willingness to pay under different pricing regimes. We show that the firm's welfare -- as well as consumers' -- may be higher with a commitment to linear pricing than when pricing is unrestricted. That is, if informational asymmetries are significant, price regulations such as the Robinson-Patman Act may be endorsed by all parties.