Continuous-time random walks are pure-jump processes with several applications in physics, but also in insurance, finance and economics. Based on heuristic considerations, a definition is given for the stochastic integral driven by continuous-time random walks. The martingale properties of the...

The authors examine the effects of a firm’s and its competitors’ online reviews on its demand within the hotel industry. The authors leverage a unique dataset of actual bookings from properties of a major hotel chain in six different markets in the United States, supplemented with online...