We propose an evolutionary equation and develop an asymptotic theory that generalize results obtained in Polterovich, Khenkin, 1988. It is shown that, as a result of interaction between innovation and imitation, the shape of the efficiency distribution curve of technologies eventually...

The paper is devoted to investigation of a number of difference-differential equations, among them the following one plays the central role: dFn/dt=φ(Fn)(Fn-1 - Fn) (*) where, for every t, {Fn(t), n = 0, 1, 2, ...} is a probability distribution function, and φ is a positive function on [0, 1]....

This paper studies the evolution of the distribution of firms in the ferrous metals industry by efficiency levels. The proposed model takes into account interaction of processes of creation and adoption of technologies and depreciation of assets. It is shown that the model approximates real data...

We propose a difference-differential equation that reflects interactions between innovation and imitation processes to describe the evolution of the distribution curve of firms by efficiency levels. An explicit solution of this equation is obtained for arbitrary finite initial conditions. It is...

The concepts of absorptive capacity and innovative capability have been introduced to describe abilities of a country to imitate and, accordingly, to create more advanced technologies. In this paper we suggest new indicators of these two abilities. To calculate them, we develop an endogenous...

Raising real interest rates has been cited as a way to increase private saving, and thus provide the resources for growth. But this may not be a viable approach in the poorest developing countries in which most people live at subsistence level. In these situations, consumption is not very...

Exchange rate based inflation stabilization programs in developing countries often lead to an initial consumption boom followed by an eventual recession. To explain such phenomenon, theoretical models have focused on the role of intertemporal consumption substitution in response to temporary...

In this paper, we use long-run annual data to estimate the intertemporal elasticity of substitution while accounting for the intra-temporal substitution between nondurable consumption goods and durable consumption goods. We apply a two-step procedure that combines a cointegration approach to...

Exchange rate-based stabilization programs in chronic-inflation countries have often been accompanied by an initial expansion of private consumption followed by a contraction. This consumption cycle has been attributed to lack of credibility, in the sense that the public views the reduction in...