From Bachelier to Merton: 100 Years of the Brownian Motion in Economics and Finance
Abstract
This paper is aimed to review and discuss the contributions from Louis Bachelier, Paul Samuelson, Fischer Black, Myron Scholes, and Robert Merton to continuous-time economics and finance. In their research, the Brownian motion not only provides a suitable modeling of the proper movements of many economic and financial variables, but also it is a very helpful tool to incorporate elements of risk and uncertainty in the dynamic of such variables. Also, the existing relationships between these contributions and the research from other prominent scientists, such as Robert Brown, Albert Einstein, Andrey Markov, Andrei Kolmogorov, Paul Lévy, Norbert Wiener and Kiyosi Itô are discussed. Finally, the paper investigates the evolution of the ideas and formulations of the developed models by Bachelier, Samuelson, Black, Scholes and Merton and simultaneously carries out a comparative analysis among such models.
Keywords
Financial economics, Contingent claims pricing
References
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