In this paper we show how the size of innovation can affect the incentive for cooperative R&D and social welfare. When cost difference between large and small innovations is not sufficiently large then social welfare can be more under small innovation compared to large innovation. However, the innovating firm always prefers large innovation.

the welfare policies and programs in the iran had started to establish modern state in iran since 1925.this paper deals with the relation between oil revenues and social welfare in iran before 1978(1357) revolution. why developmental activities within welfare policies and programs couldn’t maintain their stability and continuity? the bureaucrats and redefined groups were became the main target ...

This paper argues how an increase in minimum wage affects employment, consumption, and social welfare with dynamic general equilibrium model without market frictions. The study demonstrates that a minimum wage hike reduces an actual unemployment rate and has positive effects on an employment rate under the demand-shortage economy whereas they do not under a non-demand shortage economy. The stud...

Article history: Received 15 October 2009 Received in revised form 22 April 2010 Accepted 5 May 2010 Available online 12 May 2010

After the collapse of communism, Eastern and Southeastern European counties have experienced significant changes, especially in terms of transition to market economy was achieved through efforts of liberalization and elimination of all forms of national control. As a consequence, some of the social welfare states in the region, still anchored to the old forms of organization, faced serious diff...

Innovation by users is now understood to be an important part of innovative activity in the economy. In this paper we explore the implications of adding innovation by users to existing models of social welfare that currently assume innovation by manufacturers only. We find this addition removes several inefficiencies, and that social welfare is likely to be increased by the presence of user inn...

We present a formal logic of social welfare functions. The logical language is syntactically simple, but expressive enough to express interesting and complicated properties of social welfare functions involving, e.g., quantification over both preference relations and over individual alternatives, such as Arrow’s thorem.

This paper considers the social welfare implications of having a public rating agency in-stead of private sector credit rating agencies. The public rating agency is assumed to pay a fix compensation rather than a performance sensitive compensation and is assumed to dismiss its employee in case of "misconduct." The model predicts that the public rating agency may be socially beneficial if invest...