Portail HAL Rennes SB
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The effects of medium and sequence on personality trait assessments in face‐to‐face and videoconference selection interviews: Implications for HR analytics
No full textInternational audienceAbstract Adoption of new technology to support selection interviews may distort the validity of source data in HR analytics, with implications for Artificial Intelligence (AI) algorithms used to assess candidates' personality traits. Using a field experiment with real selection interviews, we compare two common selection interview modes—Face‐to‐Face and videoconference, to evaluate their impact on personality trait assessments. Our findings indicate that candidates scored more highly on agreeableness , openness , extroversion , and conscientiousness, but lower on neuroticism, during a Face‐to‐Face interview compared with videoconference. There was also greater variation in personality ratings when interview sequence commenced with videoconference followed by Face‐to‐Face, compared with the reverse order. Our results suggest that Face‐to‐Face followed by videoconference provide a less distorted assessment of personality traits than videoconference followed by Face‐to‐Face. This study also contributes to practical and academic debates centred on human and AI selection practices and the use of data analytics in HR processes
The role of legitimacy and reputation judgments in users’ selection of service providers on sharing economy platforms
No full textInternational audienceInformation systems literature suggests that reputation is the main judgment form that captures user-related information online. Drawing on social judgment literature, we contend that a user's online characteristics and past actions are not all reputation-based, but also legitimacy-based, and that transaction stake determines whether users will use reputation or legitimacy judgment to evaluate other users. Using Airbnb, we show that level of stake in a transaction determines the judgment form (reputation or legitimacy) that guests resort to when evaluating a host. Moreover, we find that providing extensive information on a host to potential guests in low-stake transactions is counterproductive
Market power evolution and convergence in European banking: An empirical note
No full textInternational audienceThis paper undertakes an up-to-date assessment of evolution and convergence in market power over 2013 and 2018 in the Eurozone banking markets in view of the progress towards completing the banking union. The results show that average market power measured by the Lerner index displays an upward trend up until 2016 declining thereafter. Further findings by employing the panel convergence methodology of Philips and Sul (2007) fail to support the hypothesis of integration in the Eurozone banking markets through market power convergence. Furthermore, club clustering tests reveal presence of three sub-clusters of countries with different speeds of convergence
Why do organizations leverage social media to create business value? An external factor-centric empirical investigation
No full textInternational audienceWhy do organizations develop and execute social media initiatives to create business value? This study addresses this prominent and critical research question for IS research on the business value of social media. Drawing on the institutional theory, we argue that mimetic, coercive, and normative pressure persuade organizations to use social media to improve marketing performance. We test our core proposition and theory-driven research model using data collected from a sample of leading Chinese agribusinesses. We find that coercive and mimetic pressure play pivotal roles in motivating organizations to use social media. We also discover that social media usage improves marketing performance and that the agribusiness market uncertainty plays a positive reinforcing role in the positive effect of social media usage on marketing performance. Thus, this paper contributes to IS research with an eloquent theoretical explanation and strong empirical evidence on why organizations deploy social media initiatives to improve their marketing activities and performance and the higher business value of social media under greater agribusiness market uncertainty
Is China a source of financial contagion?
No full textInternational audienceThe study examines the role China plays compared with the US in transmitting contagion to South Asia. Trade intensity, economic downturns, and negative net equity capital outflows positively influence dynamic conditional correlations between South Asian and US/Chinese financial stock returns. Chinese and US financial firms transmitted more spillovers than they received during the global financial crisis. Results are robust to the use of USD or local currency returns, and the alternative specification of the Diebold–Yilmaz model. The role of Chinese financial firms in transmitting shocks to South Asia may be of interest to policymakers, regulators, and other market participants
Long-run stability of money demand and monetary policy: The case of Algeria
No full textInternational audienceSince the start of the oil counter-shock in June 2014, Algeria has experienced unprecedented twin deficits. The excessive monetisation of the public deficit coupled with other deep anomalies in the economy of this country acutely calls for reconsideration of its monetary policy. To this end a prior study of the long-run stability of money demand is needed. We estimate the demand for money for monetary aggregates M1 and M2, and cash in Algeria over the period 1979–2019, and study its long-run stability. We show that the transaction motive is significant for all three aggregates, especially for the demand for cash, reflecting the weight of informal economy “practices”. The elasticity of the scale variable is very close to unity for M2 and M1, and even equal to unity for cash demand (1.006). The elasticity of inflation is also significant for all three aggregates, although its level is higher in the case of cash demand (−6.474). Despite the persistence of certain financial repression mechanisms, interest rate elasticity is significant for all three aggregates, but higher for M1 and cash. The same observation is made for elasticity of the exchange rate, reflecting the effect of monetary substitution, especially for M1 and cash. Finally, our study concludes that the demand for money in terms of M1 remains stable, the same observation being confirmed for the M2 aggregate. However, the demand for fiat currency proves not to be stable. The consequences for the optimal design of monetary policy in Algeria are clearly stated
From play to pay: a multifunctional approach to the role of culture in post-merger integration
No full textInternational audienceThe literature on Mergers and Acquisitions (M&A), cultural differences between organizations have frequently been identified as one of the main challenges in the process of post-merger integration (PMI). Existing research has explored a broad variety of cultural differences in perceptions, such as those relating to expectations, norms, values and beliefs within the respective organizations, and how these affect the process and success of PMI. However, less attention has been paid to the relevance of the macro-societal context to PMI. The ambition of this article is, therefore, to advance our understanding of how macro-level societal factors define organizational cultures and affect the success of PMI
The impact of Islamic banking model and Islamic financial development on bank performance: evidence from dual banking economies
No full textInternational audiencePurpose The purpose of this study is to develop an Islamic Banking Index representing the Islamic banking model and to investigate its impact on the performance of Islamic and conventional banks. This study also analyzes the impact of Islamic financial development on bank performance. Design/methodology/approach The authors collected the data from 23 countries for the period from 2010 to 2018 and developed a composite Islamic Banking Index. The authors applied the generalized method of moments on 3,542 bank-year observations for both Islamic and conventional banks to analyze the impact of the Islamic Banking Index on bank performance. The results of the study are robust to time-fixed effects, country-level time-varying factors and endogeneity issues. Findings The authors found that Islamic Banking Index positively contributes to the return on assets (ROAit) of Islamic banks only. This impact becomes highly significant in countries with comparatively higher Islamic financial development. This finding suggests that the Islamic financial development in a country provides a supportive operating environment to Islamic banks and increases their performance. The authors also found that Islamic Banking Index positively contributes to the return on equity (ROEit) of both types of banks. Practical implications The authors argue that moving away from interest-based products and focusing more on diversified portfolios can boost the performance of both types of banks without increasing their risk levels. Originality/value To the best of the authors’ knowledge, this is the first study that develops a composite Islamic Banking Index based on differentiating factors of the Islamic banking model and investigates the impact of Islamic Banking Index and Islamic financial development on bank performance
The effects of a “black swan” event (COVID-19) on herding behavior in cryptocurrency markets
No full textInternational audienceThis paper analyses herding in cryptocurrency markets in the time of the COVID-19 pandemic. We employ a combination of quantitative methods to hourly prices of the four most traded cryptocurrency markets - USD, EUR, JPY and KRW - for the period from 1st January 2019 to 13th March 2020. While there are several strong theoretical reasons to observe the “black swan” effect on cryptocurrency herding, our results suggest that COVID-19 does not amplify herding in cryptocurrency markets. In all markets studied, herding remains contingent on up or down markets days, but does not get stronger during the COVID-19. These results are important for cryptocurrency investors and regulators to enhance their understanding of cryptocurrency markets and the financial effects of the COVID-19 pandemic
What effect did the introduction of Bitcoin futures have on the Bitcoin spot market?
No full textInternational audienceBitcoin futures were introduced in December 2017 and this was seen by some as a sign of the most popular cryptocurrency finally being accepted by the financial community. In this paper, we examine the impact of the introduction of Bitcoin futures on the Bitcoin spot market in terms of five characteristics – returns, volatility, skewness, kurtosis and liquidity, using a Bayesian diffusion-regression (state-space) structural time-series model. Our results indicate that the introduction of bitcoin futures potentially exerted a downward impact on the USD bitcoin spot market return and skewness and an upward one on volatility, kurtosis and liquidity, which became higher after futures were introduced. Therefore, our paper offers important insights for investors and regulators, while providing some guidance as to the potential impact of futures markets on other cryptocurrencies