Prof.Yacine Ait-Sahalia, an economist and a finance professor, at Princeton was granted the prestigious Guggenheim Fellowship. Only 190 recipients were chosen from a pool of 2,600 applicants. Ait-Sahalia will use his fellowship to study â€œthe nature of randomnessâ€ behind financial returns. He will mostly stay at Princeton to conduct his research. â€œThe objective is to learn more about the finer characteristics of the financial returns,â€ he said.