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...

This paper incorporates recent developments in the literature to quantify the amount of interprovincial risk-sharing in Canada. We find that both capital market and the federal tax-transfer system play an almost equally important role (about 26 percent each) in smoothing shocks to gross...

We examine the potential welfare gains and channels of income smoothing for Pacific Island Countries (PICs) and nd that, under full risk sharing overall welfare gains across all PICs (particularly, Kiribati, Palau, and Papua New Guinea) are at desirable levels. However, for Australia, the...

This paper incorporates recent developments in the literature to quantify the amount of interprovincial risk-sharing in Canada. We find that 29% of shocks to gross provincial product are smoothed by capital markets, 27% are smoothed by the federal tax-transfer systems, and about 24% are smoothed...

This paper investigates welfare gains and channels of risk sharing among 14 Middle Eastern and North African (MENA) countries, including the oil-rich Gulf region and the resource-scarce economies such as Egypt, Morocco and Tunisia. The results show that, for the 1992--2009 period, the overall...