Applying Physics Methods
to Economics and Finance

What is econophysics?

"A"

Theoretical economics is dominated by pure mathematics:

George Soros on theoretical economics

What pure mathematics has contributed to economics?

Observations disagree:

Why physics can contribute to economics?

Why bother?

Short-term price fluctuations

Mainstream theoretical economy on
price fluctuations

Quick experiment: free data from
www.nyse.com/marketinfo/nysestatistics.html

If not Gaussian then what?

Crossover to 1+4 for
SERIOUSLY large fluctuations

Is there universality in μ?

Correlations in S&P500

The list of empirical facts about price fluctuations

What models are used to explain these empirical laws?

Limit order model

Price signal in a limit order model

Limit order book

Minority Game (MG)

Testing the efficient market hypothesis in MG

"“I"

Web sources on econophysics: