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A note on wealth in a volatile economy

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  • M. Marsili
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    Abstract

    I show that if the capital accumulation dynamics is stochastic a new term, in addition to that given by accounting prices, has to be introduced in order to derive a correct estimate of the genuine wealth of an economy. In a simple model with multiplicative accumulation dynamics I show that: 1) the value function is always a decreasing function of volatility 2) the accounting prices are affected by volatility 3) the new term always gives a negative contribution to wealth changes. I discuss results for models with constant elasticity utility functions. When the elasticity of marginal utility is larger than one, accounting prices increase with volatility whereas when it is less than one accounting prices decrease with volatility. These conclusions are not altered when adopting optimal saving rates.

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    File URL: http://arxiv.org/pdf/0804.2772
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    Bibliographic Info

    Paper provided by arXiv.org in its series Papers with number 0804.2772.

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    Date of creation: Apr 2008
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    Handle: RePEc:arx:papers:0804.2772

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    Web page: http://arxiv.org/

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    1. Levhari, David & Srinivasan, T N, 1969. "Optimal Savings under Uncertainty," Review of Economic Studies, Wiley Blackwell, vol. 36(106), pages 153-63, April.
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    Cited by:
    1. Elettra Agliardi, 2011. "Sustainability in Uncertain Economies," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 48(1), pages 71-82, January.
    2. Partha Dasgupta, 2009. "The Welfare Economic Theory of Green National Accounts," Environmental & Resource Economics, European Association of Environmental and Resource Economists, vol. 42(1), pages 3-38, January.

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