Collective consumption decisions taken by the members of a household may prove inefficient. The impact of such inefficient household decisions on market performance is investigated. At one extreme, market efficiency can occur even when household decisions are inefficient, namely when household...

Many budget surveys present the interesting features that for a wide range of goods they contain quantity information along with expenditure information, and that the geographical location of households is fairly precise. We take advantage of these features to develop a method for estimation of...

The paper presents an extended version of the consumer choice problem. Different from the standard model, prices are not fixed but arise from Walrasian interactions of total demand and a stylized supply function for each of the goods. Three different types of evolutionary algorithms are set up...

We develop a method for estimation of price reactions using unit value data which exploits the implicit links between quantity and unit value choices. This allows us to combine appealing Engel curve specifications with a model of unit value determination in a way which is consistent with demand...

This paper incorporates aspects of humans’ evolved cognition into a formal model of culturalevolution and scrutinizes their interactions with population-level processes. It is shown how thebiased transmission of different kinds of behavior via cultural learning processes influencesagents’...

This paper shows how sustainable consumption patterns can spread within a population viaprocesses of social learning even though a strong individual learning bias may favorenvironmentally harmful products. We present a model depicting how the biased transmission ofdifferent behaviors via...