The Internet, as a dynamic virtual medium for selling and buying information, services and products, is gaining increasing attention from researchers and practitioners. In this study, we examine the perceptions of adopters and non-adopters of online shopping in terms of demographic profile, consumer expectations of online stores, advantages and problems of online shopping and transaction cost. ...

Pension buy-ins and buy-outs have become an important aspect of managing pension risk in recent years. As a step toward understanding these pension de-risking instruments, we develop models for pricing investment risk and longevity risk embedded in pension buy-ins and buy-outs. We also bring a contingent-claims framework to price credit risk of buy-in bulk annuities. Overall, our model can be u...

We extend the classic online ski rental problem, so that the rental price may change over time. We consider several models which differ in the knowledge given to the algorithm: whereas the price development is unknown, an algorithm may have full, partial or no knowledge about the duration of the game. We construct algorithms whose competitive ratios are up to constant or logarithmic factors opt...