Previous research has examined whether price dispersion exists in theoretically highly efficient Internet markets. However, much of the previous work has been focused on industries with low cost and undifferentiated products. In this paper, we examine the presence of price dispersion and product differentiation using data on the airline ticket offerings of online travel agents (OTAs). We find t...

In 2009, a non-iterative privacy preservation for online lotteries is proposed in IET Information Security by J.S lee, C.S Chan and C.C Chang [1], who claim their scheme achieve the following properties:  Privacy. No one can learn the choices made by lottery players except the players themselves.  Security. No one can counterfeit a winner or forge a winning lottery ticket to claim the prize. ...

Many subgroups in today’s society are not skilled in using novel technologies. Even everyday technologies pose a barrier to technically nonskilled people and – if they fail to use them – exclude them from important parts of daily life. In this paper we discuss the relevance of self-efficacy for the use of one specific kind of everyday technology: the ticket vending machine. Results from observa...

Students were given lottery tickets and then were asked to exchange their ticket for another one, plus a small monetary incentive. Less than 50% agreed. In contrast, when given pens, and the same exchange offer, over 90% agreed. Experimental control rules out that the reluctance to exchange lottery tickets results (a) from overestimation of the winning probability of one's own ticket; (b) from ...

Proxy signcrytipn scheme allows an original signer to delegate his signing power to a proxy such that the latter can signcrypt a message on behalf of the former. Recently, Lin et al. proposed a proxy signcryption with CCA and CMA security. In this work, we indicate that the Lin et al.’s proxy signcryption scheme does not hold the security of indistinguishability against adaptive chosen-cipherte...

Certificateless signature scheme eliminates the need of certificates in the traditional signature scheme and solves the inherent key escrow problem in the identity based signature scheme. In this paper, we propose a new construction of certificateless signature which is strongly unforgeable in the standard model with the computational Diffie-Hellman assumption in bilinear groups. As far as we k...

a r t i c l e i n f o Keywords: Ticket-switching Retail store Information system-based inventory Actual inventory Inventory inaccuracies in retail stores result from a combination of controllable and uncontrollable factors such as theft, damage, spoilage, misplacement, process errors, ticket-switching, among others. While most shrinkage types affect only one (type of) item, ticket-switching sim...

Observation of social and economic trends (falling population in the inner city of Paris, increased commuter flows between the centre and the suburbs, and demand for local ticket prices) has led the Syndicat des Transports Parisiens (STP, the Paris transport authority) to re -examine the ticket price system as it is today. Reform of this system will involve a great many stakeholders in the tran...

IT systems of today’s enterprises are continuously monitored and managed by a team of resolvers. Any problem in the system is reported in the form of trouble-tickets. A ticket contains various details of the observed problem. However, the knowledge of the actual problem is hidden in the ticket description along with other information. Knowledge of issues helps the service providers to better pl...