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2000 Fiscal Year Final Research Report Summary

Construction and Application of Models for Price Formation in Financial Markets

Research Project

Project/Area Number 11630091
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Public finance/Monetary economics
Research InstitutionOtaru University of Commerce

Principal Investigator

WADA Ryosuke  Otaru University of Commerce, Faculty of Commerce, Associate Professor, 商学部, 助教授 (00241414)

Project Period (FY) 1999 – 2000
KeywordsMicrostructure / price volatility / trading volume / heterogeneous expectation / foreign exchange / continuous auctions / bid / ask spread / intra-day transaction
Research Abstract

Price formation processes in financial markets, including foreign exchange market, have theoretical difficulties as follows. Auctions are in continuous time and hence there is not a specific length of time to define demand and supply. So it is difficult to apply equilibrium analysis. Also market participants have heterogeneous expectations and they try to guess this heterogeneity. We have to formulate this heterogeneity while the definition of the equalibrium for the case of the continuous auction still is not clear. We introduced useful approaches to analyze continuous auctions.
Our approaches are as follows. First, we use number of arrivals of buyers and sellers instead of demand and supply. Second, we introduce a distribution function for the market participants' heterogeneous reservation prices. Third, we approximate transaction price by a median of the reservation prices.
We constructed two models for the foreign exchange market. One is for volatility/trading volume relationships and the second is for a market maker's determination of bid/ask spread. By regression analysis of intra-day USD/JPY rate, we obtained a statistically significant regression coefficient of volume on volatility. Our model can explain intra-day variations of the regression coefficient.

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Published: 2002-03-26  

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