While at AIMS, Asrat studied the convergence of the binomial market model to the Black-Scholes financial model. Precisely, by using the De Moivre Laplace Central Limit Theorem, he showed that Cox-Ross-Rubinstein’s formula for the price of a European call option in the multi-step binomial model converges in distribution to the celebrated Black-Scholes formula for a European call option price in Black-Scoles financial model.

Asrat is a PhD student at Universidade de São Paulo, Instituto de Ciências Matemáticas e de Computação, Brazil.