A financial market model where agents can only trade using realistic buyand-hold strategies is considered. Minimal assumptions are made on the nature of the asset-price process — in particular, the semimartingale property is not assumed. Via a natural assumption of limited opportunities for unlimited resulting wealth from trading, coined the No-Unbounded-Profit-with-Bounded-Risk (NUPBR) conditi...

I develop a general equilibrium model in which the quality of household financial decisions is endogenously determined by the incentives to exert effort in learning about financial opportunities. The model generates predictions for asset market participation and returns across households. Moreover, search for financial returns enables the model to generate a more skewed equilibrium wealth distr...

Adopting an asset-market view of international risk sharing, we identify various sources of macroeconomic risk faced by international investors using a structural Vector Autoregression model. We find that most of the risk of exogenous financial market shocks are shared by international investors through the existing asset markets. However, other macroeconomic risks such as those associated with...

I analyze whether case-based decision makers (CBDM) can survive in an asset market in the presence of expected utility maximizers. Conditions are identified, in which the CBDM retain a positive mass with probability one. CBDM can cause predictability of asset returns, high volatility and bubbles. It is found that the expected utility maximizers can disappear from the market for a finite period ...

Traders in a market typically have widely different, private information on the return of an asset. The equilibrium price of the asset may reflect this information more accurately if the number of traders is large enough compared to the number of the states of the world that determine the return of the asset. We study the transition from markets where prices do not reflect the information accur...

Cross-asset derivative securities are studied and a dichotomous asset pricing model (DAPM) is derived that significantly enriches the Sharpe-Lintner-Black capital asset pricing model. An assets beta is shown to be observable ex ante through the price of its cross-market call or put, and the DAPM separately predicts the assets’ expected return beta relations under the upper-market and lower-mark...

We analyze mixed bundling in two-sided markets where installed base e ects are present and nd that the pricing structure deviates from traditional bundling as well as the standard twosided markets literature|{we determine prices on both sides fall with bundling. Mixed bundling acts as a price discrimination tool segmenting the market more e ciently. Consequently, as a by-product of this price d...

We study a model where some agents have private information about risky asset returns and trade to obtain capital gains, while others acquire the risky asset and hold it to maturity, forming expectations of returns based on market prices. We show that under such a structure, in addition to fully revealing rational expectations equilibria, there exists a continuum of equilibrium prices consisten...