Pereira, Pedro2023-06-212023-06-211998https://hdl.handle.net/20.500.14352/64206Some markets are characterized by a systematic relation between how costly it is for consumers to observe prices, market power, and incentives to reduce costs. This paper offers a model of such markets and discusses incentives to invest in cost reduction. I develop two partial equilibrium models, aue static, other dynamic, where technology is determined endogenoussly throug stochastic investment, firms set prices, entry is free and consumers search for prices. I use the static model to discuss market power and price controls and the dynamic model to discuss cost volatility and predation.engAtribución-NoComercial-CompartirIgual 3.0 Españahttps://creativecommons.org/licenses/by-nc-sa/3.0/es/technical reporthttp://www.ucm.es/icaeopen accessReducción de costesConsumidores.Contabilidad (Economía)5303 Contabilidad Económica