A comparison between homogeneous and heterogeneous portfolios

Research output: Contribution to journalArticlepeer-review


We compare two portfolios: in the heterogeneous portfolio the individual risks are independent but not identically distributed. In the homogeneous portfolio the risks are independent and identically distributed. We compare the heterogeneous portfolio with two types of homogeneous portfolios. First, we assume that the distribution of each risk in the homogeneous portfolio is a mixture with equal weights of the risks in the heterogeneous portfolio, and get an upper bound for the heterogeneous portfolio. To get a lower bound we assume that the risks in the homogeneous portfolio are the average of the individual risks in the heterogeneous portfolio.

Original languageEnglish
Pages (from-to)59-71
Number of pages13
JournalInsurance: Mathematics and Economics
Issue number1
StatePublished - 20 Aug 2001


  • Convex ordering
  • Portfolios
  • Stochastic ordering
  • Supermodular ordering

ASJC Scopus subject areas

  • Statistics and Probability
  • Economics and Econometrics
  • Statistics, Probability and Uncertainty


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