We propose a new method for estimating the power-law exponent of a firm size variable, such as annual sales. Our focus is on how to empirically identify a range in which a firm size variable follows a power-law distribution. As is well known, a firm size variable follows a power-law distribution...

The authors propose a new method for estimating the power-law exponents of firm size variables. Their focus is on how to empirically identify a range in which a firm size variable follows a power-law distribution. On the one hand, as is well known a firm size variable follows a power-law...

The aim of this paper is to compare statistical properties of stock price indices in periods of booms with those in periods of stagnations. We use the daily data of the four stock price indices in the major stock markets in the world: (i) the Nikkei 225 index (Nikkei 225) from January 4, 1975 to...

This paper proposes a theory for the social evolution of obesity. It considers a society, in which individuals experience utility from consumption of food and non-food, the state of their health, and the evaluation of their appearance by others. The theory explains why, ceteris paribus, poor...

This article develops a socio-economic model that analyzes the doping decision of professional athletes. In their decision to use performance enhancing drugs athletes do not only evaluate the costs and benefits (in terms of potential rank improvement). They also take into account peer-group...

We review an empirical literature that studies the role of social interactions in driving economic and financial decision making. We first summarize recent work that documents an important role of social interactions in explaining household decisions in housing and mortgage markets. This...

Climate policy options are usually elaborated scientifically by Integrated Assessment Models that combine the economic system, the energy system and the climate system in one comprehensive framework. Most of them follow a neo-classical economic paradigm and calculate cost-efficient technological...

The literature regarding the effects of environmental hazards on social preferences is mixed and partially contradictory. The lack of a baseline in these studies is a severe methodological constraint, as it is hard to identify heterogeneous treatment effects through experience in the recovery...

This paper is an excursus on multiculturalism from a historical perspective. It ranges from the encounters of different cultures in ancient times, through the Middle Ages, the Reformation and Counter-Reformation period up to the present times. It describes the peculiarity of the solutions...