This paper proposes a parsimonious threshold stochastic volatility (SV) model for financial asset returns. Instead of imposing a threshold value on the dynamics of the latent volatility process of the SV model, we assume that the innovation of the mean equation follows a threshold distribution...

This paper studies the functional of the path of a diffusion in which volatility switches between two states: high and low. For this two-state Markov-chain model, we derive a closed-form expression for the distribution function for the time spent in the high volatility state by guessing the form...

The objective of this study is to identify factors that help build an IT reputation, and to evaluate whether markets value a firm's ability to develop and sustain its IT reputation. Building on IT strategic leadership and IT business value literature, we argue that a similarity in the background...

This study introduces a causality-based framework of antecedents and consequences in order to examine the positive reciprocity between senior IT executives (sITes) and IT capable firms. More specifically we propose that: 1. There is a positive association between accrued sources of managerial...

Contrary to prior studies that have tried to examine the role of IT capabilities on firm performance in isolation from the role of senior IT executives, we propose that there is a positive relationship between the power of senior IT executives and the likelihood that the firm will develop...

The hypothesis of market efficiency is typically rejected by standard variance-bounds tests which assume stationary asset prices. A number of researchers, however, argue that tests used in previous studies are inappropriate since asset prices appear to be generated by nonstationary processes. In...

This paper provides a complete-market valuation framework for emission allowances and related derivatives. In particular we present a structural model by assuming an emission rate with time-homogeneous parameters, where closed-form expressions are derived for allowances, allowance futures, and...

We propose a "1/N favorability index" to measure how favorable a market is to holding a 1/N portfolio. This index reflects the extent of difficulty for an optimized portfolio to outperform the 1/N portfolio in a specific market. A single-factor model predicts that bull markets are accompanied by...

This paper starts from examining the performance of equally weighted 1/N stock portfolios over time. During the last four decades these portfolios outperformed the market. The construction of these portfolios implies that their constituent stocks are in general older than those in the market as...

This paper investigates whether systematic liquidity risk is priced by implementing an empirical test on the recently proposed float-adjusted return model. For testing purposes, we obtain an appropriate (and arguably unique) empirical measure of so-called liquidity beta based on Chinese...