We study the economic sources of stock-bond return comovement and its time variation using a dynamic factor model. We identify the economic factors employing structural and non-structural vector autoregressive models for economic state variables such as interest rates, (expected) inflation,...

We explore the effects of fat tails on the equilibrium implications of the long run risks model of asset pricing by introducing innovations with dampened power law to consumption and dividends growth processes. We estimate the structural parameters of the proposed model by maximum likelihood. We...

We present efficient partial differential equation (PDE) methods for continuous time mean-variance portfolio allocation problems when the underlying risky asset follows a jump-diffusion. The standard formulation of mean-variance optimal portfolio allocation problems, where the total wealth is...

This article tries to solve the portfolio inflation hedging problem by introducing a new class of dynamic trading strategies derived from classic portfolio insurance techniques adapted to the real world. These strategies aim at yielding higher returns on a risk-adjusted basis than regular...

We analyze optimal monetary policy and its implications for asset prices, when aggregate demand has inertia and responds to asset prices with a lag. If there is a negative output gap, the central bank optimally overshoots aggregate asset prices (asset prices are initially pushed above their...

This paper presents an equilibrium model in a pure exchange economy when investors have three possible sources of heterogeneity. Investors may differ in their beliefs, in their level of risk aversion and in their time preference rate. We study the impact of investors heterogeneity on the...

Accepted wisdom, assuming capital market equilibrium and low cash returns, advises investors to hold optimal portfolios containing little cash. But credit crunches - periods of non-price credit rationing when effective cash yields are very high - happen in the real world. Because of this, it is...

Investors seek to hedge against interest rate risk by taking long or short positions on bonds ofdifferent maturities. We study changes in risk taking behavior in a low interest rateenvironment by estimating a market stochastic discount factor that is non-linear and thereforeconsistent with the...

This paper studies long-run trends in the expected return on risky assets and its relationship with the safe rate. We use time-varying return predictability regressions to estimate expected returns on two major risky asset classes – equity and housing – across 17 countries and 145 years. We...

In this paper, we build up a portfolio in the Chinese residential real estate market. We separate 35 big cities in China into 3 groups with different criteria. Then we build portfolios for these groups, by comparing the efficient frontier and Sharpe ratio with the portfolio of full samples. We...