What is the optimal default contribution rate or default asset allocation in pension plans? Could active decision (i.e., not setting a default and forcing employees to make a decision) be optimal? These questions are studied in a model in which each employee is biased regarding her optimal...

This paper analyses a model in which employees are biased in their perception of their optimal contribution rates or asset allocations in defined contribution pension plans. The optimal default is characterised as a function of the parameters. It is shown that, for some values of the parameters,...

We investigate how deftned beneftt pension schemes of FTSE ftrms are valued by the equity market, focusing on how future liabilities are discounted (since UK data allows us to estimate the duration of pension liabilities fairly accurately). We ftnd that equity market valuation is consistent with...

In this work we solve in a closed form the problem of an agent who wants to optimise the inter-temporal utility of both his consumption and leisure by choosing: (i) the optimal inter-temporal consumption, (ii) the optimal inter-temporal labour supply, (iii) the optimal share of wealth to invest...

We analyse questions of arbitrage in financial markets in which asset prices change in time as stationary stochastic processes. The main focus of the paper is on a model where the price vectors are independent and identically distributed. In the framework of this model, we find conditions that...

We revisit the question whether commodities should be included in investors' portfolios. We employ for the first time a stochastic dominance efficiency (SDE) approach to construct optimal portfolios with and without commodities and we evaluate their comparative performance. SDE circumvents the...