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Do Ak models really lack transitional dynamics?

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  • Getachew, Yoseph Yilma

    () (Durham Business School, Durham University)

Abstract

Contrary to a popular belief, the most popular Ak growth models display transitional dynamics once the representative agent and complete markets assumptions are overturned. The class of models is identied with diminishing returns at individual but constant returns at aggregate due to externality effects. Under incomplete markets, the former implies that dynasties with a lower levels of initial capital grow faster. This is picked up by the aggregate economy that passes through a long transitional period before it converges to its balanced growth path. During the transition period, aggregate consumption and output grow at the same rate but higher than that of capital.

Suggested Citation

  • Getachew, Yoseph Yilma, 2012. "Do Ak models really lack transitional dynamics?," MERIT Working Papers 2012-011, United Nations University - Maastricht Economic and Social Research Institute on Innovation and Technology (MERIT).
    • Handle: RePEc:unm:unumer:2012011
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    References listed on IDEAS

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    More about this item

    Keywords

    Transitional dynamics; Ak model; inequality dynamics; heterogeneous households; incomplete capital market;
    All these keywords.

    JEL classification:

    • D30 - Microeconomics - - Distribution - - - General
    • E47 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Forecasting and Simulation: Models and Applications
    • O42 - Economic Development, Innovation, Technological Change, and Growth - - Economic Growth and Aggregate Productivity - - - Monetary Growth Models

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