We propose exact simulation-based procedures for: (i) testing mean-variance efficiency when the zero-beta rate is unknown, and (ii) building confidence intervals for the zero-beta rate. On observing that this parameter may be weakly identified, we propose LR-type statistics as well as...

The paper argues that bond investors (and, implicitly large creditors in general), may not necessarily demonstrate the “Investors' Smartness” that some previous studies attributed to large institutional holders, when it comes to pricing-in for economic shocks likely to occur in future. This...

We describe how networks based on information theory can help measure and visualize systemic risk, enhance diversification, and help price assets. To do this, we first define a distance measure based on the mutual information between asset pairs and use this measure in the construction of...

This paper considers two methods of estimating factor mimicking portfolios from asset returns: Two-pass cross-sectional regression and asymptotic principal components. We show that, for a balanced panel of assets, iterating the two-pass cross-sectional regression converges to the same estimated...

An important issue in applications of multifactor models of asset returns is the appropriate number of factors. Most extant tests for the number of factors are valid only for strict factor models, in which diversifiable returns are uncorrelated across assets. In this paper we develop a test...

Two-pass cross sectional regression (TPCSR) is frequently used in estimating factor risk premiums. Recent papers argue that the common practice of grouping assets into portfolios to reduce the errors-in-variables (EIV) problem leads to loss of efficiency and masks potential deviations from asset...

This study utilizes contemporaneously sampled survey data on the expectations of U.S. and Japanese investors regarding future levels of the DJIA and the NIKKEI stock indices. The survey covers the period 1989-1999. The expectation data is used to compute direct tests of investor rationality and...

Using long-run data and a VAR approach, the study investigates whether US and UK stock markets have experienced excessively volatile prices and excessively high returns. Present value models, developed in a constant and non-constant risk CAPM framework, are used as benchmarks with which to...

In this paper we propose exact likelihood-based mean-variance efficiency tests of the market portfolio in the context of Capital Asset Pricing Model (CAPM), allowing for a wide class of error distributions which include normality as a special case. These tests are developed in the framework of...