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The effect of interest rates on consumption in an income fluctuation problem

Ehud Lehrer and Bar Light

Journal of Economic Dynamics and Control, 2018, vol. 94, issue C, 63-71

Abstract: We examine the effect of a change in interest rates on an agent’s consumption and savings decisions when her income is fluctuating. In each period, a long-lived agent decides how much to save (i.e., invest in a risky bond) and how much to consume while her income and the rate of return on her savings are uncertain and depend on the state of the economy. We show that under the concavity of the consumption function, a condition that ensures that the substitution effect dominates the income effect, lower interest rates encourage the agent’s consumption across all states.

Keywords: Consumption; Savings; Interest rates; Income fluctuation problem; Dynamics (search for similar items in EconPapers)
JEL-codes: C70 C78 D51 D58 (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1016/j.jedc.2018.07.004

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Journal of Economic Dynamics and Control is currently edited by J. Bullard, C. Chiarella, H. Dawid, C. H. Hommes, P. Klein and C. Otrok

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