Search results for "EMMA"
showing 10 items of 629 documents
Pool punishment in public goods games: How do sanctioners’ incentives affect us?
2021
Abstract Centralized sanctioning in social dilemmas has been shown to increase efficiency with respect to standard decentralized peer punishment. In this context, we explore the impact of sanctioners’ motivations through their payoff scheme, not only on their actions but also on the actions of the monitored individuals. To do so, we compare the implementation of two different payoff schemes for the monitor in a centralized sanctioning framework: (i) a fixed payoff scheme and (ii) a variable payoff scheme contingent on the level of cooperation achieved. We find that providing the sanctioner with a contingent payoff has a negative impact on contributions. This occurs although sanctioners impl…
SEA presidential address: Group connectivity and cooperation
2011
A model-free methodology is used for the first time to estimate a daily volatility index (VIBEX-NEW) for the Spanish financial market.We use a public data set of daily option prices to compute this index and showthat daily changes in VIBEXNEW display a negative, tight contemporaneous relationship with IBEX daily returns, contrary to other common volatility indicators, as an implied volatility indicator or a GARCH(1,1) conditional volatility model. This relationship is approximately symmetric to the sign on VIBEX-NEW changes and asymmetric to the IBEX-35 returns sign, which make it clearly a suitable volatility index for the Spanish stock market. We also examine the relationship between curr…
Atkārtotu pilsoņu karu izcelšanās: Kotdivuāras, Lībijas un Mali gadījumu analīze
2015
Maģistra darba uzdevums ir analizēt pilsoņu karu atkārtošanās iemeslus Kotdivuārā, Lībijā un Mali. Pētījuma centrā ir arguments, ka vāja institucionālā leģitimitāte, vāja trešo pušu iesaiste un sasteigts atbruņošanās, demobilizācijas un reintegrācijas process saasina drošības dilemmu starp konfliktējošām pusēm, kas noved pie atkārtota pilsoņa kara. Lai pierādītu autores argumentus, darba teorētiskā bāze tika balstīta uz pilsoņu karu teorijām, kas ir prakses vispārinājumi, kā arī uz drošības dilemmas koncepta aplūkošanu pilsoņu karu ietvaros. Kā analīzes metode ir fokusētā salīdzināšanas metode. Iegūtie rezultāti tika apkopoti secinājumos, un autore izvirzīja arī rekomendācijas tālākiem akad…
Iespējamie drošības dilemmas riski - Ķīnas un ASV attiecībās Dienvidķīnas jūras reģionā
2017
Bakalaura darbā aplūkotas Ķīnas un ASV attiecības 21. gadsimtā saistībā ar Dienvidķīnas jūras reģionu. Darba mērķis ir apskatīt ASV un Ķīnas attiecības caur drošības dilemmas prizmu. Tiks apskatīts drošības dilemmas koncepts, tā attīstības vēsture un veidošanās nosacījumi. Tiks veikta analīze, balstoties uz šī brīža situāciju starp ASV un Ķīnu, noskaidrots, kādā drošības dilemmas posmā ir abu valstu attiecības – pasīvajā, aktivizētajā, akūtajā vai spirālē. Darbā izvirzīta hipotēze: ASV un Ķīnas attiecības ir nonākušas drošības dilemmas drošības dilemmas modeļa pedējā posmā – aktivizētajā drošības dilemmā. Minētā hipotēze pētījuma gaitā apstiprinājās.
The Impact of Ethnicity on an Employee`s Readiness to comply with a Code of Conduct: Differences between German/Austrian and Chinese Employees
2018
The authors assess how ethnicity impacts ethical choices of an employee towards corporate compliance behaviour as part of the ethical decision making process at work. An employee faces an ethical dilemma in business situations when he/she is caught in an ethical conflict between his/her individual moral standards and a Code of Conduct, representing the moral values of the company. The authors investigate potential connections between ethnicity and individual ethical decision making. This study obtained original data to analyze the potential impact of ethnicity on employees in Germany, Austria and the PR China.
The Future of Crowdfunding Research and Practice
2020
AbstractThis chapter critically reflects on current crowdfunding research and practice while highlighting eight dilemmas that are expected to shape the future of crowdfunding. Each dilemma is critically discussed and is followed by relevant suggestions for future research. These dilemmas include: (1) the balance between idealism and pragmatism; (2) the extent of cooperation between crowdfunding platforms and traditional financial institutions; (3) measurement of crowdfunding success and performance in financial and socio-economic terms; (4) the balance between quantity and quality in campaigns approved for publication by platforms; (5) domestic versus international growth of crowdfunding pl…
Mediators of change in online acceptance and commitment therapy for psychological symptoms of parents of children with chronic conditions : An invest…
2020
Highlights: Parents of children with chronic conditions can benefit from an ACT web intervention. Cognitive defusion and acting with awareness mediated effects on psychological symptoms. General psychological flexibility did not mediate effects on outcomes. Improving mindfulness skills aid in optimizing treatment effects in online interventions. peerReviewed
Formations of finite monoids and formal languages: Eilenberg’s variety theorem revisited
2014
International audience; We present an extension of Eilenberg's variety theorem, a well-known result connecting algebra to formal languages. We prove that there is a bijective correspondence between formations of finite monoids and certain classes of languages, the formations of languages. Our result permits to treat classes of finite monoids which are not necessarily closed under taking submonoids, contrary to the original theory. We also prove a similar result for ordered monoids.; Nous présentons une extension du théorème des variétés d'Eilenberg, un résultat célèbre reliant l'algèbre à la théorie des langages formels. Nous montrons qu'il existe une correspondance bijective entre les form…
The snail lemma for internal groupoids
2019
Abstract We establish a generalized form both of the Gabriel-Zisman exact sequence associated with a pointed functor between pointed groupoids, and of the Brown exact sequence associated with a fibration of pointed groupoids. Our generalization consists in replacing pointed groupoids with groupoids internal to a pointed regular category with reflexive coequalizers.
Bipullbacks of fractions and the snail lemma
2017
Abstract We establish conditions giving the existence of bipullbacks in bicategories of fractions. We apply our results to construct a π 0 - π 1 exact sequence associated with a fractor between groupoids internal to a pointed exact category.