THE EXPERIMENTAL INVESTIGATION OF THE PROFIT DISTRIBUTION IN INDUSTRIAL SUPPLY CHAINS WITH AN OUTSIDE OPTION / PELNO PASKIRSTYMO PRAMONINĖSE TIEKIMO GRANDINĖSE EKSPERIMENTINIS TYRIMAS

There is an industrial supply chain, where an individual customer selects a supplier and excludes other ones. If the excluded supplier has the possibility to overtake the relationship afterwards, he has big influence on the relationship among the cooperation partners. A profit distribution rule has been developed that considers the impact of the excluded supplier. The paper presents round based games in which the present values change and influence the cooperative relationships. First, examples with ideal‐typical numbers are calculated and depicted by the software “MATLAB”. Internet experiments are made with participants on the basis of the software “z‐tree” in order prove the relevance of the proposed profit distribution rule. Finally, the experimental data is compared with the theoretical predictions. Santrauka Paprastai pramoninio tiekimo grandineje klientas pasirenka konkretų tiekėja ir atmeta kitus. Jei veliau su atmestuoju tiekėju vis dėlto užmezgami santykiai, klientas įgyja didelę svarbą pletojant partnerių santykius. Sukurta pelno paskirstymo taisyklė, įvertinanti atmesto tiekejo įtaka. Straipsnyje pateikiama serija žaidimų, kuriuose kinta esama vertė ir daroma įtaka partnerių santykiams. Pirma, naudojantis MATLAB programinė įranga apskaičiuojamos ir atvaizduojamos būdingosios reikšmės. Antra, pasitelkus Z‐tree programinę įranga atliktas internetinis eksperimentas siekiant įrodyti, kad pasiūlyta pelno paskirstymo taisyklė galioja. Galiausiai eksperimentiniai duomenys palyginami su teorinėmis prognozėmis.

Stress and Emotion Recognition: An Internet Experiment Using Stress Induction

Past findings have lead us to assume that the decoding of emotions in facial expression is impaired in stressful situations. The effect of stress on decoding ability is examined through use of an Internet based experiment in which an episode of stress is induced in one group of participants. A fictitious “EQ online evaluation study” serves as a framework. The main task consisted in recognizing 24 emotions from facial expressions in the Ekman-Friesen-series ( Ekman & Friesen, 1976 ), which were presented for approximately 200 ms. Data collected from 86 participants support the underlying hypotheses that stress negatively affects decoding performance. Results are discussed in terms of considerations that must be taken into account due to the method of collecting data in an Internet based study. Ethical aspects of Internet experiments are also discussed.