This paper introduces a theory of market incompleteness based on the information transmission role of prices and its adverse impact on the provision of insurance in financial markets. We analyse a simple security design model in which the number and payoff of securities are endogenous. Agents have rational expectations and differ in information, endowments, and attitudes toward risk. When marke...

The role of ordinary options in facilitating the completion of securities markets is examined in the context of a model of contingent claims sufficiently general to accommodate the continuous distributions of asset pricing theory and option pricing theory. In this context, it is shown that call options written on a single security approximately span all contingent claims written on this securit...

This paper proposes a new model for portfolio selection in which the expected returns of securities are considered as variables rather than as the arithmetic means of securities. A genetic algorithm is designed to solve the optimization problem which is di$cult to solve with the existing traditional algorithms due to its nonconcavity and special structure. We illustrate the new model by a numer...

This paper considers the pricing of corporate securities of a given firm, in particular equity, when investors do not have full information on the firm’s asset value. We show that under noisy asset information, the pricing of corporate securities leads to a nonlinear filtering problem. This problem is solved by a Markov chain approximation, leading to an efficient finite-dimensional approximati...

• issuance of 147,000,000 privatization checks (vouchers) as freely transferable bearer securities, accepted by the State as payment for shares of privatized enterprises (huge educational effect, redistribution of ownership and creation of the securities market); • massive transformation of state-owned enterprises into joint-stock companies and issue of shares of privatized enterprises; • vouch...

We develop a method of assigning unique prices to derivative securities, including options, in the continuous-time finance model developed in Raimondo [45]. In contrast with the martingale method of valuing options, which cannot distinguish among infinitely many possible option pricing processes for a given underlying securities price process when markets are dynamically incomplete, our option ...

Ben McFarlane considers the possible impact on the law of intermediated securities of some developments in the general law of trusts and of property.

The dynamic replication strategy of Black and Scholes is important enough that it is worth repeating from last week. Recall the setup. From day k − 1 to day k, the stock (risky asset price) either goes up Sk−1 → Sk = uSk or goes down Sk = dSk−1 (recall that we actually did not necessarily need u > 1 or d < 1, but it is convenient to think of u as up and d as down.) The replicating portfolio is ...

Peter DeMarzo, Ilan Kremer and Andrzej Skrzypacz (2005, henceforth DKS) analyzed auctions in which bidders compete in securities. They show that a steeper security leads to a higher expected revenue for the seller, and also use this to establish the revenue ranking between standard auctions. In this comment, we obtain the opposite results to DKS’s by assuming that a higher return requires a hig...