We explore the case for monopolistic price flexibility in a linear setting. With different marginal costs, by changing the production mix price differentiation can improve welfare and also aggregate consumer surplus even if total output does not increase (as in the linear case). This depends on the variability of cost and demand parameters, and on their correlation. We also show that the welfar...

Kutylowski et al. have introduced a voter-verifiable electronic voting scheme ”a practical voting scheme with receipts”, which provides each voter with a receipt. The voter can use her receipt to check whether her vote has been properly counted in the final tally, but she cannot use the receipt to prove others how she has voted. Another interesting property of this scheme is that, thanks to the...

The VALG project is introducing e-voting to municipal and county elections to Norway. Part of the e-voting system is a mix-net along the lines of Puiggalí et al. a mix-net which can be efficiently verified by combining the benefits of optimistic mixing and randomized partial checking. This paper investigates their mix-net and proposes a verification method which improves both efficiency and pri...

This article reports the first known study on the disposal of puppies in an Afro-Caribbean community. The study reported the fate of 2,427 puppies through 517 interviews with dog caregivers. The study reported that surviving puppies from "pure-bred" females were typically sold (60.1% of surviving puppies) whereas those from mongrel (potcakes) mothers were given away (48.4%). Pure-bred mothers p...

After almost two decades of research on anonymous network communication the development has forked into two main directions, namely Mix cascades and peer-to-peer (P2P) networks. As these design options have implications on the achievable anonymity and performance, this paper aims to elaborate the advantages and disadvantages of either concept. After clarifying the scope of the discussion, we pr...

BACKGROUND Adequate resource allocation is an important factor to ensure equity in health care. Previous reimbursement models have been based on age, gender and socioeconomic factors. An explanatory model based on individual need of primary health care (PHC) has not yet been used in Sweden to allocate resources. The aim of this study was to examine to what extent the ACG case-mix system could e...

The concept of relative bid privacy in auction is proposed, which does not conceal the bids, but conceals the link between them and the corresponding bidders. Relative bid privacy leads to two advantages: the bidding values can be very precise and any auction rule can be applied. A new mix network is designed and applied to implement relative bid privacy efficiently. Two rounds of shuffling are...