Communities often rely on sanctioning to induce public goods contributions. Past studies focus on how external agencies or peer sanctioning induce cooperation. In this article, we focus instead on the role played by centralized authorities, internal to the community. Combining "lab-in-the-field" experiments with observational data on 1,541 Ugandan farmers from 50 communities, we demonstrate the...

Most voting schemes rely on a number of authorities. If too many of these authorities are dishonest then voter privacy may be violated. To give stronger guarantees of voter privacy Kiayias and Yung [1] introduced the concept of elections with perfect ballot secrecy. In this type of election scheme it is guaranteed that the only thing revealed about voters’ choices is the result of the election,...

in cinema, the relationship between art and society is questioned more than other kinds of art. among all diverse approaches studying cinema, the reflection approach- believing cinema is impressed by the society. this approach is a theoretical framework of this research. the main question is how cinema reflected political demands of iranian society from 1995 to 2006. this period is noticeable c...

In IAVoSSWorkshop On Trustworthy Elections (WOTE 2006) two papers depicted “Punchscan”, a hybrid paper-electronic voting protocol invented by David Chaum. The scheme is verifiable and effective, but it is managed by a single Election Authority, which must be trusted with voters’ privacy: the Election Authority holds secret information that allows to link a vote from the final bulletin board wit...

Mexico’s recent presidential election put the whole electoral system, from candidates to citizens and authorities, to the test. Soon after election-day, one of the losing candidates and other observers alleged that fraudulent practices of different sorts took place on July 2. Beyond and above the use of fraud claims as a political strategy, do these claims hold any water? There are no definitiv...

n elections throughout the U.S., electronic voting machines have failed to boot, tallied 10 times as many votes as registered voters, and drawn criticism from academics, election officials, and concerned citizens alike. High-profile exploits (such as the Hursti attack [4] and the Princeton group’s Diebold virus [2]) have brought media attention to the fragility just below the surface of electro...

This paper offers some insights into Twitter as a political field, based on Bourdieu’s field theory. Networked publics, agents of this are competing overpower by performing networked practices. To investigate we focused two practices: framing and narrating. Persian in 2017 presidential election provides good context to analyze how such is constituted. Combining social-network analytic approach ...

Simplified verifiable re-encryption mix-net (SVRM) is revised and a scheme for e-voting systems is developed based on it. The developed scheme enables evoting systems to satisfy all essential requirements of elections. Namely, they satisfy requirements about privacy, verifiability, fairness and robustness. It also successfully protects voters from coercers except cases where the coercers force ...