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Modeling investment behavior in developing countries : an application to Egypt (English)

The economic literature on investment has been characterized by considerable controversy, even by the standards of economists. A number of different, often overlapping, models of investment determination have been hypothesized and the empirical evidence has done little to clarify which, if any, are accurate representations of the way in which capital formation occurs in the economy. This paper suggests some methodological innovations in modelling aggregate investment behavior. A theoretical framework for analyzing investment decisions that takes into account some of the structural features of a developing economy is presented. Starting from the firm's optimization problem, an aggregate investment function is derived that reflects the results of a survey of decision-making in fifty private sector firms in Egypt. The model is then tested at the macroeconomic level using new econometric techniques that have emerged in the recent literature on stationarity testing and cointegration. The relationship between investment and an array of government policies is highlighted in the econometric analysis. The conclusions, both methodological and empirical, are also presented.

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Citation

Shafik,Nemat Talaat

Modeling investment behavior in developing countries : an application to Egypt (English). Policy, Research, and External Affairs working paper ; no. WPS 452 Washington, D.C. : World Bank Group. http://documents.worldbank.org/curated/en/266201468770097635/Modeling-investment-behavior-in-developing-countries-an-application-to-Egypt