More and more research suggests that the past return of one firm’s stock can predict the stock returns of other, connected firms—with momentous implications for firm networks and investors. “Such cross-stock return momentum is found among stocks connected by the same industry, supply chain, and geographic location,” explain Jialin Yu of HKUST and a colleague ... Read More

In today’s competitive online retail environment, reviews represent an important quality signal that helps customers make more informed purchase decisions. The impact of reviews can propagate up the supply chain, affecting multiple firms’ decisions on pricing and product quality. HKUST’s Dongwook Shin and a colleague shed new light on this phenomenon ... Read More