globalization effects on social security systems and on social expenditures in different countries will be analyzed in this chapter. our consentration is yet on anglo-saxon countries . but it is assumed that many offer countries are under the same pressure of globalization on their social security expenses as the anglo-saxon countries . this will be examined later in another chapter. in previou...

We analyse the role of uncertainty in a sequential game where players have to decide whether to contribute to a public project or not. A player’s payoff may depend on his belief about the other player’s action which allows us to model social pressure. Using the theory of psychological games, we show that the players’ propensity to choose an individually costly action such as cooperation in a pu...

Motivated by privacy and security concerns in online social networks, we study the role of social pressure in opinion games. These are games, important in economics and sociology, that model the formation of opinions in a social network. We enrich the definition of (noisy) best-response dynamics for opinion games by introducing the pressure, increasing with time, to reach an agreement. We prove...

In light of recent evidence, we develop a theory of charitable giving in which donors feel social pressure from a direct solicitation. We show that equilibrium donations are concentrated around a social norm: donors below the norm increase giving while those above the norm reduce it. Despite a higher level of the public good, relatively poor and/or low altruism givers fare worse under social pr...