Conventional pension systems suffer from a design defect which makes them financially unsustainable, and a source of inefficiency for the economy as a whole. The paper outlines a second-best policy which includes a public pension system made up of two parallel schemes, a Bismarckian one allowing...

The risk of high costs of long-term care services and supports (LTSS) is one of the largest uninsured risks for American families and a major challenge to the sustainability of Medicaid. To address the latter, the long-term care partnership (LTCP) program was an initiative designed to encourage...

To investigate the external validity of laboratory results, we combine a public good experiment with three treatments in a field experiment. One treatment offers the opportunity to free-ride, the other two are placebo treatments. We compare results within subjects. In the free-riding treatment,...

This paper considers a dynamic model of the evolution of open source software projects, focusing on the evolution of quality, contributing programmers, and users who contribute customer support to other users. Programmers who have used open source software are motivated by reciprocal altruism to...

Concern about potential free riding in the provision of public goods has a long history. More recently, experimental economists have turned their attention to the conditions under which free riding would be expected to occur. A model of free riding is provided here which demonstrates that...

This paper studies how a preference for consistency can affect economic decision-making. We propose a two-period model where people have a preference for consistency because consistent behavior allows them to signal personal and intellectual strength. We then present three experiments that study...

We study charitable giving within social groups. Exploiting a unique dataset, we establish three key relationships between social group size and fundraising outcomes: (i) a positive relationship between group size and the total number of donations; (ii) a negative relationship between group size...

Contributing to a social cause can be an important driver for workers in the public and non-profit sector as well as in firms that engage in Corporate Philanthropy or other Corporate Social Responsibility policies. This paper compares the effectiveness of social incentives - that take the form...

We empirically investigate the effect of social preferences on portfolio choice. We use administrative investor data and link them to behavior in a controlled experiment and to survey responses. We show that social preferences rather than (biased) risk-return expectations are predictive for...

When asking for donations, charitable organizations often use suggestions concerning the amount of potential contributions. In our randomized field experiment, opera visitors received solicitation letters asking to support a social youth project organized by the opera house. The three different...