On the existence of optimal processes in non-stationary environments

Tapan Mitra, Yaw Nyarko

Research output: Contribution to journalArticlepeer-review


We consider an aggregative model of intertemporal allocation under uncertainty, in which the utility and production functions are allowed to be time dependent, the random shocks occurring in each period are entirely arbitrary, and the production functions are permitted to be non-concave. In this framework, we provide a theorem on the existence of infinite-horizon optimal processes. In the course of establishing this result, we obtain the existence of optimal policy functions and we show that they are monotone in the stock levels.

Original languageEnglish (US)
Pages (from-to)245-270
Number of pages26
JournalJournal of Economics Zeitschrift für Nationalökonomie
Issue number3
StatePublished - Oct 1991

ASJC Scopus subject areas

  • General Business, Management and Accounting
  • Economics and Econometrics


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