Existing bank-card payment systems, such as EMV, have two serious vulnerabilities: the user does not have a trustworthy interface, and the protocols are vulnerable in a number of ways to man-in-themiddle attacks. Moving to RFID payments may, on the one hand, let bank customers use their mobile phones to make payments, which will go a fair way towards fixing the interface problem; on the other h...

This paper examines what factor determines demand of firms for contract farming, and how the market condition affects their demand. 208 pork processing firms in Jilin and Henan Provinces in China faced a severe price competition, and failed to differentiate their products that allow them to raise selling prices. Under this market condition, few firms have demands for employing contract farming....

Shortly after a lengthy article on the art partnership of Marshall S. Simpson (1900–1958) and Roslynn E. Middleman (1929–2003) appeared in Summer 2022 issue New Jersey Studies, one individual who owns three their works contacted author. Outlined below is story those paintings, which now brings to six total number original Simpson-Middleman abstract collaborations fully developed style that can ...

Abstract This paper studies matching markets in the presence of middlemen. In our framework, a buyer–seller pair may either trade directly or use services middleman; and middleman serve multiple pairs. For each such market, we examine associated TU game. We first show that, context, an optimal can be obtained by considering two-sided assignment market where is allowed to mediation any free char...

he central point of Milton and Rose Friedman's best seller Free to Choose is that markets leave freedom of choice to individuals, while governments negate it. While this basic argument is clearly right, it is often objected to on grounds that it holds only for the well-offs. For many poor people around the world, the freedom markets grant seems to be more theoretical than real. Consider, for in...