In an open distributed system, it is desirable to have dynamic selection of required services. Trading is a common ODP function that enables client (service consumers) to choose appropriate servers (service providers) at run time so that clients can be configured into an ODP system without prior knowledge of the server objects. An ODP-trader is an object that provides such a trading function. U...

While machine learning is one of the most popular research areas in Computer Science right now, there are still only a few applications meant to be used by general public. This paper presents an exemplary application that may be directly applied to eBay trading. This paper starts with a short survey of machine learning in general and techniques that may be used to benefit the development of sai...

To capture trader heterogeneity in a market microstructure setting, we model a trader’s option to trade as an optimal stopping problem. This option to trade is much like a firm’s option to invest in the real options literature. The optimal bid-ask prices quoted by any trader are functions of the joint evolution of their own private value and the private value of their intended trading counterpa...

Platform and Transformations for Model-Driven Service-Oriented Development João Paulo A. Almeida, Luís Ferreira Pires, Marten van Sinderen Telematica Instituut, P.O. Box 589, 7500 AN Enschede, The Netherlands [email protected] Centre for Telematics and Information Technology, University of Twente, P.O. Box 217, 7500AE, Enschede, The Netherlands {l.ferreirapires, m.j.sinderen}@ewi.utwen...

An Object-Z formal speci cation of the ODP Trader is presented which concisely captures the hierarchical context structure, the distribution of information and the communication aspects of the Trader. Particular use is made of generic classes, class inheritance and object aggregation (i.e. the instantiation of collections of similar objects) to give a structured speci cation that can be readily...

An Object-Z formal speciication of the ODP Trader is presented which concisely captures the hierarchical context structure, the distribution of information and the communication aspects of the Trader. Particular use is made of generic classes, class inheritance and object aggregation (i.e. the instantiation of collections of similar objects) to give a structured speciication that can be readily...

Using proprietary audit trail transactions compiled by the Commodity Futures Trading Commission, we investigate, at the individual trader level, (1) the timing and (2) the determinants of dual traders’ personal trades. Our analysis reveals a surprising absence of any trade timing by dual traders in relation to the execution of their customers’ orders. Further examination employing correlation s...

In a finite-trader version of the Diamond-Dybvig (1983) model, the symmetric, ex-ante efficient allocation is implementable by a direct mechanism (i.e., each trader announces the type of his own ex-post preference) in which truthful revelation is the strictly dominant strategy for each trader. When the model is modified by formalizing the sequential-service constraint (cf. Wallace, 1988), the t...