This paper addresses how asymmetric information, fads and Lévy jumps in the price of an asset affect the optimal portfolio strategies and maximum expected utilities of two distinct classes of rational investors in a financial market. We obtain the investors’ optimal portfolios and maximum expected logarithmic utilities and show that the optimal portfolio of each investor is more or less than it...

If the contract makes dividend adjustments (as typical for contracts on single stocks but not on indices), then the term inside the parentheses becomes log((Yn+Dn)/Yn−1), where Dn denotes the dividend payment, if any, of the nth period. Corridor variance swaps accumulate only the variance that occurs while price is in the corridor. The buyer therefore pays less than the cost of a full variance ...

The warrant price fluctuated in a range based on the arbitrage-free hypothesis. However, in the actual transaction, the warrant price will deviate the price range because of the investor sentiment, sometimes the deviation is too far that the actual price breaks the lower limit based on the arbitrage-free hypothesis, which make the market some arbitrage opportunities. The buyers’ strength and th...

Most investment treaties contain two dispute resolution clauses: one permitting investor-state arbitration for investment disputes and the other permitting state-to-state arbitration for disputes concerning the treaty’s interpretation and/or application. Despite this duality, the potential role of state-to-state arbitration, and its proper relationship with investor-state arbitration, have larg...

During the recent financial crisis, more than 30% of hedge fund managers used their discretion to restrict investor liquidity through the use of “gates” or “side pockets.” Using a database of hedge fund investor interests, this paper is the first to empirically examine the determinants of these discretionary liquidity restrictions (DLRs) and their consequences for hedge fund investors. We find ...

We consider a popular problem in finance, option pricing, through the lens of an online learning game between Nature and an Investor. In the Black-Scholes option pricing model from 1973, the Investor can continuously hedge the risk of an option by trading the underlying asset, assuming that the asset’s price fluctuates according to Geometric Brownian Motion (GBM). We consider a worst-case model...

Research has focussed on the impact that factors such as IT, marketplace process design and competition have on electronic marketplace performance. However, such research has neglected the impact of ownership upon the performance of an electronic marketplace. This paper explores the issue of ownership in electronic marketplaces and derives a broad, multi-faceted perspective of ownership, incorp...

In this paper, we present an intelligent agent based portfolio management system, which can be used by the financial services industry to provide inexpensive Internetbased "self serve" offerings to small investors. This system is designed to assist investment banking firms, which offer funds of funds. Banker agents assist mutual fund managers in devising a global efficient frontier from the ind...

Investor sentiment about future returns of financial instruments is a highly relevant information source for investment managers and other stakeholders in the financial industry. Investor sentiments are abundant in financial blog texts. Making use of these sentiments constitutes a massive information management challenge when considering the millions of blog articles with everchanging and growi...

In this first study to test formally the market value of investor relations (IR) activity, we employ the annual US Investor Relations Magazine Investor Relations Awards from 2000 to 2002 to proxy for the quality of firm investor relations. We find firms perceived to have the most effective IR strategies earn superior abnormal returns, both before and after the nominations. This shows that while...