Publications des institutions partenaires
A hierarchical Bayesian model of the influence of run length on sequential predictions
Two models of how people predict the next outcome in a sequence of binary events were developed and compared on the basis of gambling data from a lab experiment using hierarchical Bayesian techniques. The results from a student sample (N = 39) indicated that a model that considers run length (“drift model”)—that is, how often the same event has previously occurred in a row—provided a…
Institution partenaire
English / 01/01/2014
Genetic influences on dietary variety - Results from a twin study
The heritability of variety seeking in the food domain was estimated from a large sample (N = 5,543) of middle age to elderly monozygotic and dizygotic twins from the “Virginia 30,000” twin study. Different dietary variety scores were calculated based on a semi-quantitative food choice questionnaire that assessed consumption frequencies and quantities for a list of 99 common foods.…
Institution partenaire
English / 01/01/2014
Illusionary pattern detection in habitual gamblers
Does problem gambling arise from an illusion that patterns exist where there are none? Our prior research suggested that “hot hand,” a tendency to perceive illusory streaks in sequences, may be a human universal, tied to an evolutionary history of foraging for clumpy resources. Like other evolved propensities, this tendency might be expressed more stongly in some people than others,…
Institution partenaire
English / 01/01/2014
Change and status quo in decisions with defaults: the effect of incidental emotions depends on the type of default
Affective states can change how people react to measures aimed at influencing their decisions such as providing a default option. Previous research has shown that when defaults maintain the status quo positive mood increases reliance on the default and negative mood decreases it. Similarly, it has been demonstrated that positive mood enhances the preference for inaction. We extend…
Institution partenaire
English / 01/01/2014
The Strategist's Change - How successful CSOs transform their Companies : Key Findings of the Chief Strategy Officer Survey 2014
In a world where business parameters are constantly changing, where uncertainty and geopolitical instability are on the rise, successful corporate transformation is one of the most critical – and most difficult – tasks for the Chief Strategy Officer (CSO). Adjusting to new conditions, which in an age of digitalization and hypercompetition often has to happen in real time, is akin to…
Institution partenaire
English / 01/01/2014
Ant Local Search for Combinatorial Optimization
In ant algorithms, each individual ant makes decisions according to the greedy force (short term profit) and the trail system based on the history of the search (information provided by other ants). Usually, each ant is a constructive process, which starts from scratch and builds step by step a complete solution of the considered problem. In contrast, in Ant Local Search (ALS), each…
Institution partenaire
English / 01/01/2014
Margining in derivatives markets and the stability of the banking sector
We investigate the effects of margining, a widely-used mechanism for attaching collateral to derivatives contracts, on derivatives trading volume, default risk, and on the welfare in the banking sector. First, we develop a stylized banking sector equilibrium model to develop some basic intuition of the effects of margining. We find that a margin requirement can be privately and…
Institution partenaire
English / 01/01/2013
Liquidity Risk, Return Predictability, and Hedge Funds' Performance: An Empirical Study
This article analyzes the effect of liquidity risk on the performance of equity hedge fund portfolios. Similarly to Avramov, Kosowski, Naik, and Teo (2007),(2011), we observe that, before accounting for the effect of liquidity risk, hedge fund portfolios that incor- porate predictability in managerial skills generate superior performance. This outperfor-mance disappears or weakens…
Institution partenaire
English / 01/01/2013
Preferences for Truthfulness: Heterogeneity among and within Individuals
We conduct an experiment assessing the extent to which people trade off the economic costs of truthfulness against the intrinsic costs of lying. The results allow us to reject a type-based model. People's preferences for truthfulness do not identify them as only either "economic types" (who care only about consequences) or "ethical types" (who care only about…
Institution partenaire
English / 01/01/2013
Do Implicit Barriers Matter for Globalization?
Market liberalization may not result in full market integration if implicit barriers are important. We test this proposition for investable and non-investable segments of twenty- two emerging markets (EMs). We also measure the degree of integration for six major developed markets (DMs) as a meaningful benchmark. We find that while the DMs are close to fully integrated, both EM…
Institution partenaire
English / 01/01/2013
Dynamics of stakeholders’ implications in the institutionalization of the CSR iield in France and in the United States
Institution partenaire
English / 01/01/2013
Combining Stocks and Flows of Knowledge: The Effects of Intra-Functional and Cross-Functional Complementarity
While previous research has mostly focused on either knowledge stocks or knowledge flows, our study is among the first to integrate these perspectives in order to shed light on the complementarity effects of different types of knowledge stocks and flows in the multinational corporation (MNC). This study investigates intra-functional as well as cross-functional complementarity effects…
Institution partenaire
English / 01/01/2013
What Do We Know About Corporate Headquarters? A Review, Integration, and Research Agenda
During the past five decades, scholars have studied the corporate headquarters (CHQ) – the multidivisional firm's central organizational unit. The purpose of this article is to review the diverse and fragmented literature on the CHQ and to identify the variables of interest, the dominant relationships, and the contributions. We integrate, for the first time, the existing…
Institution partenaire
English / 01/01/2013
Testing adaptive toolbox models: a Bayesian hierarchical approach
Many theories of human cognition postulate that people are equipped with a repertoire of strategies to solve the tasks they face. This theoretical framework of a cognitive toolbox provides a plausible account of intra- and interindividual differences in human behavior. Unfortunately, it is often unclear how to rigorously test the toolbox framework. How can a toolbox model be…
Institution partenaire
English / 01/01/2013
The Chief Strategy Officer in the European Firm : Professionalising Strategy in Times of Uncertainty
The chief strategy officer (CSO) position has recently been gaining prominence in European firms. However, little is known about this new executive role. In this article, the authors report some of their findings from a major research program that involved two surveys of CSOs and give a portrayal of the CSO’s role in continental European firms. The article further highlights how CSOs…
Institution partenaire
English / 01/01/2013
Masters of Paradoxes : Key Findings of the Chief Strategy Officer Survey 2013
The results of the third edition of our Chief Strategy Officer (CSO) Survey, now with more than 150 participants from 14 different European countries, paint a clear picture of the role of the chief strategist. To add value at the firm level, today's CSO must above all be a master of paradoxes. In times of uncertainty, it is no longer a question of "either/or" but of…
Institution partenaire
English / 01/01/2013
Volatility spillovers, comovements and contagion in securitized real estate markets
Institution partenaire
English / 01/01/2013
Femina Index : betting on gender diversity is a profitable SRI strategy
Institution partenaire
English / 01/01/2013
Valuing American options using fast recursive projections
This paper introduces a new numerical option pricing method by fast recursive projections. The projection step consists in representing the payoff and the state price density with a fast discrete transform based on a simple grid sampling. The recursive step consists in transmitting coefficients of the representation from one date to the previous one by an explicit recursion formula.…
Institution partenaire
English / 01/01/2012
Technical trading revisited: false discoveries,persistence tests, and transaction costs
We revisit the apparent historical success of technical trading rules on daily prices of the DJIA index from 1897 to 2011, and use the False Discovery Rate as a new approach to data snooping. The advantage of the FDR over existing methods is that it selects more outperforming rules which allows diversifying against model uncertainty. Persistence tests show that, even with the more…
Institution partenaire
English / 01/01/2012
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