HEC Paris

About: HEC Paris is a education organization based out in Jouy-en-Josas, France. It is known for research contribution in the topics: Investment (macroeconomics) & Market liquidity. The organization has 584 authors who have published 2756 publications receiving 104467 citations. The organization is also known as: Ecole des Hautes Etudes Commerciales & HEC School of Management Paris.

The Rich Domain of Uncertainty: Source Functions and Their Experimental Implementation

Abstract: We often deal with uncertain events for which no probabilities are known. Several normative models have been proposed. Descriptive studies have usually been qualitative, or they estimated ambiguity aversion through one single number. This paper introduces the source method, a tractable method for quantitatively analyzing uncertainty empirically. The theoretical key is the distinction between different sources of uncertainty, within which subjective (choice-based) probabilities can still be defined. Source functions convert those subjective probabilities into willingness to bet. We apply our method in an experiment, where we do not commit to particular ambiguity attitudes but let the data speak.

Border Crossing: Bricolage and the Erosion of Categorical Boundaries in French Gastronomy

Abstract: Sociological researchers have studied the consequences of strong categorical boundaries, but have devoted little attention to the causes and consequences of boundary erosion. This study analyzes the erosion of categorical boundaries in the case of opposing category pairs. The authors propose that categorical boundaries weaken when the borrowing of elements from a rival category by high-status actors triggers emulation such that the mean number of elements borrowed by others increases and the variance in the number of elements borrowed declines. It is suggested that penalties to borrowing in the form of downgraded evaluations by critics exist, but decline as the number of peers who borrow increases. The research setting is French gastronomy during the period from 1970 to 1997, when classical and nouvelle cuisines were rival categories competing for the allegiance of chefs. The results broadly support the authors' hypotheses, indicating that chefs redrew the boundaries of culinary categories, which critics ...

Performance and behavior of family firms: evidence from the french stock market

Abstract: This paper empirically documents the performance and behavior of family firms listed on the French stock exchange between 1994 and 2000. On the French stock market, approximately one third of the firms are widely held, whereas the remaining two thirds are family firms. We find that, in the cross-section, family firms largely outperform widely held corporations. This result holds for founder-controlled firms, professionally managed family firms, but more surprisingly also for firms run by descendants of the founder. We offer explanations for the good performance of family firms. First, we present evidence of a more efficient use of labor in heir-managed firms. These firms pay lower wages, even allowing for skill and age structure. We also find that descendants smooth out industry shocks and manage to honor implicit labor contracts. Second, we present evidence consistent with outside CEOs in family firms making a more parsimonious use of capital. They employ more unskilled, cheap labor, use less capital, pay lower interest rates on debt and initiate more profitable acquisitions. (JEL: G32, L25, J31)

International Market Correlation and Volatility

Abstract: International correlations for stocks and bonds fluctuate widely over time. As previous studies have found, volatility appears to be contagious across markets. In addition, international correlation increases in periods of high market volatility. Although the correlation of individual foreign stock markets with the U.S. stock market has generally increased slightly over the past 37 years, it has not increased during the past 10 years. Similarly, the international correlation of bond markets increased in the early 1980s, but it has had no discernible trend in the past 10 years. The fairly low levels of international correlation among stocks or bonds suggests that national factors still strongly affect local asset prices. The link between correlation and market volatility is bad news for global money managers because when the domestic market is subject to a strong negative shock is when the benefits of international risk diversification are needed most.