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692 research outputs found
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Mired in deception: escalating an environmental disaster in Colombia
No full textInternational audienceThis paper aims to analyze concealment and deception in self-defeating organizational crisis response strategies and the possible consequences of their adoption on a company’s reputation. It represents an example of where every guideline to address stakeholders after a crisis was dismissed
Lead Time Quotation under MTO and MTS Delivery Modes with Endogenous Demand
No full textInternational audienceWe consider the case of a company that sells two substitutable varieties of the same product in a lead time-sensitive market. The regular product is manufactured and delivered with a make-to-order (MTO) system. The express product is delivered with a make-to-stock (MTS) system. The products (express and regular) are substitutable, so the demand of each product depends not only on his lead time but also on the lead time of the other product. We focus on the lead time decision of the MTO system (the other parameters are assumed to be known). We determine analytically the optimal solution and derive some insights
Perceptional components of brand equity: Configuring the Symmetrical and Asymmetrical Paths to brand loyalty and brand purchase intention
No full textInternational audienceThis research investigates the impact of brand perception on brand loyalty and brand purchase intention using the lenses of complexity theory. First, the study conceptualizes and operationalizes perceptional and behavioral components of brand equity. It then examines the dimensions of brand perception, and by assessing the consequences of favorable brand perception, the study enables a better understanding regarding whether a brand marketing approach helps to improve marketing performance. The research was conducted using a mixed methodology, beginning with interviews in order to gain a better understanding of the relationship between the dimensions of brand perception. These were followed by a questionnaire survey, and the resulting data were analyzed through content analysis and fuzzy-set qualitative comparative analysis (fsQCA). The results indicate that brand awareness, perceived quality, brand association, brand fondness, brand image, and product country image have a strong impact on the management of brand perception. The finding illustrates that it is the combinations of various perceptional elements of brand equity rather than any single factor that have strong impacts on brand loyalty and brand purchasing intention. The results support the importance of brand perception for the fashion industry, which needs to be more interactive in order to increase their customers' brand loyalty and brand purchasing intention
Scientists’ engagement in knowledge transfer and exchange: individual factors, variety of mechanisms and users
No full textInternational audienceThis article aims to provide a deeper understanding of the individual factors behind scientists’ involvement in a wide variety of knowledge transfer and exchange (KTE) activities. By doing so, the article addresses three major shortcomings in the literature. First, this article considers scientists’ involvement in both formal and informal KTE activities. Secondly, the study focuses not only on KTE activities with the private sector, but also with other types of agents. Thirdly, the article adopts an individual approach to distinguish between three types of KTE predictors: individual capacities, training and career trajectories, and motivations. Overall, the results of the regression model applied to a sample of 1,295 researchers active in the largest public research organization in Spain (CSIC) suggest that, while some individual features are connected to some KTE activities, other individual predictors (e.g. multitasking and interdisciplinarity) are more evenly associated to a variety of KTE mechanisms and users. Based on those findings, the article offers policy recommendations to craft more accurate policies to encourage scientists’ KTE engagement
Risk-adjusted performance of portfolio insurance and investors’ preferences
No full textInternational audienceThis paper draws a clear line between investors’ risk preferences and their choice of either Option Based Portfolio Insurance (OBPI) or Constant Proportion Portfolio Insurance (CPPI). For this purpose, OBPI and CPPI are compared using partial-moments-based risk-adjusted performance measures, which are adequate for comparing asymmetric return distributions and can be easily tailored to reflect investors’ preferences. The analysis covers expected utility and prospect utility investors, among others, and the results show investors’ risk preferences in the gain domain are the key determinants of the choice between OBPI and CPPI
Production planning with order acceptance and demand uncertainty
No full textInternational audienceTraditional production planning models assume that all orders must be satisfied when capacity is available. In this paper, we analyze the value of providing decision makers with the flexibility to accept or reject orders, when order quantity is uncertain. We introduce this demand flexibility in two production planning problems. The first problem integrates order acceptance in the capacitated lot sizing problem, providing the option to reject an order if it requires a high setup cost and cannot be aggregated with additional orders to take advantage of economies of scale. The second problem integrates order acceptance in the order release planning problem with load-dependent lead times (LDLTs). This problem provides the option to reject an order if it increases the workload causing the delay of other orders due to congestion effects. Robust counterparts of both integrated problems are formulated as linear mixed integer programs (MIPs). The deterministic integrated problems and their robust counterparts are shown to be NP-hard and a two-stage MIP heuristic is proposed as a solution procedure. A relax and fix (RF) heuristic is adapted to efficiently construct feasible solutions to the robust problems, which are then improved by a fix and optimize (FO) heuristic. Numerical results show that the proposed heuristics give promising results in terms of solution quality and computation time. Simulation experiments are conducted to assess the value of demand flexibility and to study the effects of various parameters on economical performance
Multivariate dependence and spillover effects across energy commodities and diversification potentials of carbon assets
No full textInternational audienceIn a first step, we model the multivariate tail dependence structure and spillover effects across energy commodities such as crude oil, natural gas, ethanol, heating oil, coal and gasoline using canonical vine (C-vine) copula and c-vine conditional Value-at-Risk (CoVaR). In the second step, we formulate portfolio strategies based on different performance measures to analyze the risk reduction and diversification potential of carbon assets for energy commodities. We identify greater exposure to losses arising from investments in heating oil and ethanol markets. We also find evidence of carbon asset providing diversification benefits to energy commodity investments. These findings motivate for regulatory adjustments in the trading and emission permits for the energy markets most strongly diversified by carbon assets
A global network topology of stock markets: Transmitters and receivers of spillover effects
No full textInternational audienceThis paper applies a bivariate cross-quantilogram approach to examine the spillover network structure in the stock markets of 58 countries according to bearish, normal and bullish market scenarios. Our aim is to identify the strongest interdependencies, the directionality of the spillover risk effects, and to detect those equity markets with the potential to cause global systemic risk. The results highlight the role of the US and Canadian equity markets as major spillover transmitters, while the stock markets of Romania, Taiwan and Mexico act mainly as spillover receivers. Particularly strong spillovers are observed from the Canadian and US equity markets towards the Irish market, and from the Brazilian equity market towards the Kenyan equivalent. The equity market networks suggest that only the US equity market can trigger systemic risk on a global scale. Implications of the results are discussed
Factors influencing Co₂ emissions in China: a nonlinear autoregressive distributed lags investigation
No full textInternational audienceThis paper investigates the environmental impact of economic growth, energy consumption, financial development, and globalization in China over the period 1970Q1-2015Q4. In particular we consider four dimensions of globalization, namely, economic, social, political, and overall globalization. The nonlinear autoregressive distributed lags (NARDL) model has been employed to capture the potential asymmetric impact of the determinants of carbon dioxide (CO₂) emissions in China. This work presents a number of interesting findings. (1) In the short run, economic growth and financial development have a significant symmetric impact on CO₂ emissions. Energy consumption has a nonlinear and asymmetric influence on CO₂ emissions. However, economic globalization does not impact CO₂ emissions. (2) In the long run, economic growth, financial development, and economic globalization exhibit an asymmetric influence on CO₂ emissions in the model, including the economic dimension of globalization. Economic growth has a positive and symmetric impact on CO₂ emissions in the model, including social globalization; however, it does not influence CO₂ emissions in the case of political or overall globalization. In addition, energy consumption is positively linked to CO₂ emissions. Moreover, financial development does not influence CO₂ emission in the models, including social, political, and overall globalization. Social and overall globalization have a significant influence on CO₂ emissions. The results of this paper are important for policies that would promote sustainable development and environment protection
The compliance of disclosure with AAOIFI financial accounting standards
No full textInternational audienceThis paper aims to examine the compliance of disclosure with the financial accounting standardsof the Accounting and Auditing Organisation for Islamic Financial Institutions’ (AAOIFI) related to Islamicfinancing products by Islamic banks in Bahrain and Qatar