Much of behavioural research, both in economics and in psychology, is limited in one respect: it tests isolated individuals. In many practically relevant situations, there are discernible actors, but these actors are not individuals. Rather firms, regulatory bodies, associations, countries or...

Many decisions are interactive; the outcome of one party depends not only on its decisions or on acts of nature but also on the decisions of others. In the present article, we review the literature on decision making made by groups of the past 25 years. Researchers have compared the strategic...

We discuss the literatures on behavioral economics, bounded rationality and experimental economics as they apply to firm behaviour in markets. Topics discussed include the impact of imitative and satisficing behavior by firms, outcomes when managers care about their position relative to peers,...