The present study was conducted to define the variables affecting payment mechanism for strategic purchasing in the indirect health section of Iranian Social Security Organization of Iran, by which the Organization can provide the insured with better services while controlling the cost. 13 variables affecting payment mechanism for strategic purchasing were determined. A questionnaire was prepar...

OBJECTIVE To assess the responses to financial incentives after a change in the payment system in a capitation-style healthcare payment system over a 5-year period. STUDY DESIGN Cross-sectional and longitudinal examination of cost, utilization, and diagnostic data. METHODS Using Veterans Health Administration (VHA) administrative data on healthcare users between fiscal years 1998 and 2002, ...

Mobile payment system has made it easy for people to do financial transaction. However, its security is still a concern. It needs to protect the data transferred between parties involved in the system. In this paper, we investigate the possibility use of elliptic curve cryptography to secure the data transferred in a payment system.

In this paper we analyze the security of the new Brazilian Payment System. No worrying vulnerabilities were found, but there are some issues that we believe need to be addressed more carefully. Some minor changes and directions for further development of the system are proposed, such as: specifying which random number generators can be used in the system and encrypting digital signatures to avo...

Previously proposed anonymous electronic payment systems have the drawback that the bank has to maintain large databases, which is a handicap for the realization of such systems. In this paper, we present a practical anonymous payment system that signiicantly reduces the size of such databases. It uses the concept of anonymous accounts and ooers anonymity as an add-on feature to existing EFTPOS...

In this paper, we propose a micro-payment system that is able to apply to several vendors using only one hash chain. Explicitly, this scheme can be considered as an improvement and extension of PayWord [8] suggested by Rivest and Shamir in 1996. We focus on the scheme that guarantees atomicity and non-repudiation among requirements for payment systems. Atomicity and non-repudiation play an impo...