This paper first describes moment properties for Random Coefficient Autoregressive (RCA) processes and the corresponding squared processes, and then studies joint prediction of the mean and volatility. Recursive estimates based on estimating functions are used to compute joint predictions for...

Purpose Service innovation is a key source of competence for service enterprises. Along with the emergence of crowdsourcing platforms, consumers are frequently involved in the process of service innovation. In this paper, the authors describe the crowdsourcing ideation...