It is shown here that market crashes and bubbles can arise without external shocks. Sudden changes in behavior coming after a long period of stationarity may be the result of endogenous information processing. Except for the daily observation of the market, there is no new information, no...

In many markets it is possible to find rival sellers charging different prices for the same good. Earlier research has attempted to explain this phenomenon by demonstrating the existence of dispersed price equilibria when consumers must make use of costly search to discover prices. We ask...

We introduce cheap talk in a dynamic investment model with information externalities. We first show how social learning adversely affects the credibility of cheap talk messages. Next, we show how an informational cascade makes thruthtelling incentive compatible. A separating equilibrium only...

We study a strategic model of dynamic trading where agents are asymmetrically informed over common value sources of uncertainty. There is a continuum of uninformed buyers and a finite number of sellers, some of them informed. When there is only one seller, full information revelation never...

We study the evolution of prices in a symmetric duopoly where firms are uncertain about the degree of product differentiation. Customers sometimes perceive the products as close substitutes, sometimes as highly differentiated. Firms learn about their competitive environment from the quantities...

This paper studies optimal experimentation by a monopolist who faces an unknown demand curve subject to random changes, and who maximises profits over an infinite horizon in continuous time. We show that there are two qualitatively very different regimes, determined by the discount rate and the...

Human brain has invented the Computer&upgraded it to a level of Combrains. With Artificial Chemical Memory, these may grow to function as independent Iintellects, Master/Sponsor representatives and self- decision workers with autonomy&supreme capability. Like any human society learn and function...

The aim of this paper is to find a framework that could be useful to evaluate the utility of the concept of “Community of Practice” (CoP) for understanding the dynamics of knowledge creation and sharing in Industrial Districts (IDs). The CoP concept stems from the managerial experience of...

Despite the expectations of economists that the euro changeover would have no effect on prices, we show that European consumers perceive the contrary. The data indicate that consumers based their perceptions about inflation on goods that are cheaper and more frequently purchased. We use this...

This paper examines a mechanism of liquidity-preference fluctuations caused by people's learning behavior. % about the frequency of a liquidity shock. When observing a financial shock, they rationally update their belief so that the subjective probability of encountering it again is higher,...