Portfolio performance under tracking error and asset weight constraints

Rational asset pricing bubbles and portfolio constraints

This article shows that portfolio constraints can give rise to rational asset pricing bubbles in equilibrium even if there are unconstrained agents in the economy who can benefit from the induced limited arbitrage opportunities. Furthermore, it is shown that bubbles can lead to both multiplicity and real indeterminacy of equilibria. The general results are illustrated by two explicitly solved e...

Asset Selection and Under-Diversification with Financial Constraints and Income: Implications for Household Portfolio Studies

Asset Selection and Under-Diversification with Financial Constraints and Income: Implications for Household Portfolio Studies

Empirical studies of household portfolios have shown that young and relatively poor households hold under-diversified portfolios that are concentrated in a small number of assets, a fact often attributed to various behavioral biases. We present a model that offers a potential rational alternative: we show that relatively poor investors; i.e., investors with little financial wealth, who receive ...

A Continuous Optimization Approach for the Financial Portfolio Selection under Discrete Asset Choice Constraints

In this paper we consider a generalization of the Markowitz's Mean-Variance model under linear transaction costs and cardinality constraints. The cardinality constraints are used to limit the number of assets in the optimal portfolio. The generalized model is formulated as a mixed integer quadratic programming (MIP) problem. The purpose of this paper is to investigate a continuous approach base...

Tracking error: a multistage portfolio model

We study multistage tracking error problems. Different tracking error measures, commonly used in static models, are discussed as well as some problems which arise when we move from static to dynamic models. We are interested in dynamically replicating a benchmark using only a small subset of assets, considering transaction costs due to rebalancing and introducing a liquidity component in the po...