The Dynamics of Self-Esteem and Physical Self: Between Preservation and Adaptation

The aim of this study was to model and characterize the psychologicalprocesses that underlie the dynamics of global self-esteem and physicalself over time. Twice a day for 228 consecutive days, seven participantscompleted a short inventory (PSI-6, Ninot et al., 2001) measuring sixsubjective dimensions: global self-esteem, physical self-worth, physicalcondition, sport competence, physical strength, and attractive body.Each series was modeled by means of ARIMA procedures. The resultsshowed that a simple moving average model provided a satisfactoryaccount for the dynamics of all series. This model suggests that acombination of two opposite processes underlies the dynamics ofself-concept: preservation, which tends to restore the previousvalue after a disturbance, and adaptation, which tends to inflectthe series in the direction of the perturbation.     

Liquidity and Arbitrage in Options Markets: A Survival Analysis Approach

This paper examines the determinants of the time it takes foran index options market to return to no arbitrage values afterput-call parity deviations, using intraday transactions datafrom the French index options market. We employ survival analysisto characterize how limits to arbitrage influence the expectedduration of arbitrage deviations. After controlling for conventionallimits to arbitrage, we show that liquidity-linked variablesare associated with a faster reversion of arbitrage profits.The introduction of an Exchange Traded Fund also affects thesurvival rates of deviations, but this impact essentially stemsfrom the reduction in the level of potential arbitrage profits.     

Relational selling strategy and key account managers' relational behaviors: An exploratory study

Many companies see key account management as a potentially successful way to implement a relational strategy. Nevertheless, the literature suggests that strategy implementation at the sales force level is difficult to achieve, mainly because salespeople may not understand - nor accept - what they are requested to do. Despite their relevance, behaviors of key account managers have poorly been investigated. This article defines and tests a model of relational selling behaviors from the part of key account managers. Results show that the perception of the adoption of a relational selling strategy is associated with some specific key account managers' behaviors (customer-oriented selling, adaptive selling and team selling), but not with others (organizational citizenship behaviors). These findings suggest that potential discrepancies can exist between a relational selling strategy and its implementation at the key account manager level. Based on these results, theoretical and managerial implications are discussed.     

Does transparency in central bank intervention policy bring noise to the FX market?: The case of the Bank of Japan

This paper empirically investigates the induced effect of a more and less transparent central bank intervention (CBI) policy on rumors that can emerge. Using the case of Japan, we estimate a dynamic-probit model that explains the main determinants of false reports (i.e. falsely reported interventions) and anticipative rumors (i.e. rumors about future interventions) with reference to the intervention strategy adopted by the central bank for actual and oral interventions, and the uncertainty climate of the market captured by two volatility measures. Our results suggest that the induced effect of a transparent CBI policy on market rumors critically depends on the type of speeches made by officials.     

Nonlinear pricing and exclusion: I. buyer opportunism

We study the exclusionary properties of nonlinear price‐quantity schedules in an Aghion‐Bolton style model with elastic demand and product differentiation. We distinguish three regimes, depending on whether and how the price charged by the dominant firm depends on the quantity purchased from the rival firm. We find that the supply of rival good is distorted downward. Moreover, given the quantity supplied from the rival, the buyer may opportunistically purchase inefficiently many units from the dominant firm to pocket quantity rebates. We show that the possibility for the buyer to dispose of unconsumed units attenuates the opportunism problem and limits the exclusionary effects of nonlinear pricing.     

Engineering Hedonic Attributes to Generate Perceptions of Luxury: Consumer Perception of an Everyday Sound

For the last twenty years, the perception of hedonic attributes has been a problematic matter in consumer research. We argue that the perception of a hedonic product attribute should not be considered as an irreducible holistic experience, but rather as a complex set of sensory experiences, the components of which are identifiable and quantifiable. We provide evidence for this position by proposing a reliable method linking the features of product-related sound stimuli to consumer perception of hedonic attributes. To our knowledge, this study is the first of its kind offering a detailed investigation of consumer perception of everyday sounds (as opposed to music). We discuss managerial and consumer-level implications of the findings and provide an agenda for future research.     

Stock Markets,Banks and Long Run Economic Growth: A Panel Cointegration-Based Analysis

The aim of this paper is to investigate the long run relationship between the development of banks and stock markets and economic growth. We make use of a Johansen-based panel cointegration methodology allowing for cross-country dependence to test the number of cointegrating vectors among these three variables for 5 developing countries. In addition, we test the direction of potential causality between financial and economic development. Our results conclude to the existence of a single cointegrating vector between financial development and growth and of causality going from financial development to economic growth. We find little evidence of reverse causation as well as bi-directional causality. We interpret this as evidence supporting the significance of financial development for economic development although banks and stock markets may have different effects depending on the level of economic development.     

Comparing Regulations to Protect the Commons: An Experimental Investigation

In a laboratory experiment we test three regulations imposed on a common-pool resource game with heterogeneous users: an access fee and subsidy scheme, transferable quotas and non-transferable quotas. We calibrate the game so that all regulations improve users’ profits compared to free-access extraction. We compare the regulations according to five criteria: resource preservation, individual profits, profit difference, Pareto-improvement from free-access and sorting of the most efficient users. One of the main findings is that, even though it performs better in sorting out the most efficient subjects, the fee and subsidy scheme is not more profitable than tradable quotas.     

Using diffusion models to forecast market size in emerging markets with applications to the Chinese car market

Marketing managers have to forecast the market size and this forecast guides strategic decisions whether to continue exporting, open new factories or expand existing production operations. Forecasting sales and the market size is a challenging task; even more so in emerging markets where data is limited and the market demand is changeable. This research proposes a novel approach that applies diffusion models using car ownership data to forecast car sales. Car ownership data may be easier to access than sales data in emerging markets but marketing managers are more interested in the sales forecast. Researchers propose using diffusion models to forecast the adoption of new products or products which are new to consumers in a market. This research demonstrates that marketing managers can use diffusion models to predict car sales in China where cars are new products to most consumers in this market. Since the majority of car buyers in China are first time buyers, car manufacturers and retailers must also forecast when the market composition will change. This effectively means predicting when first time car buying will start to slow down and repeat/replacement purchase or second hand car purchase will become more important. To forecast both sales and market composition change, marketing managers must choose a robust model. Managers want insights from models that have been tested robustly especially in less stable market conditions. In this context, this study illustrates the value of using a rolling forecast instead of a fixed horizon approach when comparing and choosing which model to use to forecast both sales and market composition change for the Chinese car market.