Why Do Arbitrage Opportunities Exist?

Arbitrage is as old as the profession of trading. Even in a bartering economy, arbitrage existed. But why do they exist?

What is Backtesting overfitting, and why should you avoid it?

In this era of competitiveness in financial studies, opting for empirical research without backtesting overfitting is quite a chore. Read our article to avoid overfitting in your research.