727 research outputs found
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Zur Keramikchronologie der Römischen Kaiserzeit in Ostwestfalen anhand der Siedlungen von Enger, Hüllhorst und Kirchlengern im Ravensberger Land [Dataset]
No full textDissertation über römisch-kaiserzeitliche Keramik aus Ostwestfalen, inkl. Datensätzen zu den (keramischen) Funden und den Befunden sowie den durchgeführten Seriation
en; zu den Details siehe die Datei "Erläuterungen
Imitation and the Evolution of Walrasian Behavior: Theoretically Fragile but Behaviorally [Dataset]
No full textA well-known result by Vega-Redondo (1997) [18] implies that in symmetric Cournot oligopolies, imitation leads to the Walrasian outcome. We show that this result is not robust to the slightest asymmetry in costs, since every outcome where agents choose identical actions will be played some fraction of the time in the long run. We then conduct experiments to check this fragility. We obtain that, contrary to the theoretical predictio
n, the Walrasian outcome is a good predictor of market outcomes. Finally, we suggest a new theory based on a mix of imitation and other learning processes that explains subjects' behavior fairly well
Mandatory Sick Pay Provision: A Labor Market Experiment [Dataset]
No full textThe question whether a minimum rate of sick pay should be mandated is much debated. We study the effects of this kind of intervention with student subjects in an experimental laboratory setting rich enough to allow for moral hazard, adverse selection, and crowding out of good intentions. Both wages and replacement rates offered by competing employers are reciprocated by workers. However, replacement rates are only reciprocated as long as no minimum level is mandated. Although we observe adverse selection when workers have different exogenous probabilities for being absent from work, this does not lead to a market breakdown. In our experiment, mandating replacement rates actually leads to a higher voluntary provision of replacement rates by employers
Belief Elicitation: A Horse Race among Truth Serums [Dataset]
No full textWe pit non-incentivized introspection against five revealed preference mechanisms (“truth serums”) in the elicitation of beliefs in a simple two-player game. We measure the additivity, the predictive power for own behaviour, and the accuracy of each method. Beliefs from incentivized methods are better predictors of participants’ own behaviour compared to introspection. However, introspection performs equally well as the truth serums in terms of accuracy and additivity. We also find that correction for risk aversion improves the additivity of scoring-rule belief reports
How do subjects view multiple sources of ambiguity? [Dataset]
No full textAs illustrated by the famous Ellsberg paradox, many subjects prefer to bet on events with known rather than with unknown probabilities, i.e., they are ambiguity averse. In an experiment, we examine subjects’ choices when there is an additional source of ambiguity, namely, when they do not know how much money they can win. Using a standard assumption on the joint set of priors, we show that ambiguity-averse subjects should continue to strictly prefer the urn with known probabilities. In contrast, our results show that many subjects no longer exhibit such a strict preference
Depletion of the chromatin looping proteins CTCF and cohesin causes chromatin compaction [Dataset]
No full textSimulations using an advanced version of the Dynamic Loop model were performed to investigate the mechanisms responsible for the experimental finding that the reduction of the chromatin looping proteins CTCF and cohesin leads to chromatin compaction
Learning in Cournot Oligopoly - An Experiment [Dataset]
No full textThis experiment was designed to test various learning theories in the context of a Cournot oligopoly. We derive theoretical predictions for the learning theories and test these predictions by varying the information given to subjects. The results show that some subjects imitate successful behaviour if they have the necessary information, and if they imitate, markets are more competitive. Other subjects follow a best reply process. On the aggregate level we find that more information about demand and cost conditions yields less competitive behaviour, while more information about the quantities and profits of other firms yields more competitive behaviour
Why do people keep their promises? An experimental test of two explanations
No full textNumerous psychological and economic experiments have shown that the exchange of promises greatly enhances cooperative behavior in experimental games. This paper seeks to test two theories to explain this effect. The first posits that individuals have a preference for keeping their word. The second assumes that people dislike letting down others' payoff expectations. According to the latter account, promises affect behavior only indirectly, because they lead to changes in the payoff expectations attributed to others. I conduct an experiment designed to distinguish between and test these alternative explanations. The results demonstrate that the effects of promises cannot be accounted for by changes in payoff expectations. This suggests that people have a preference for promise keeping per se
A dynamic Ellsberg urn experiment [Dataset]
No full text Abstract Many theories of updating under ambiguity assume either dynamic consistency or consequentialism to underpin behaviorally the link between conditional and unconditional preferences. To test the descriptive validity of these rationality concepts, we conduct a dynamic extension of Ellsbergʼs 3-color experiment. We find that more subjects act in line with consequentialism than with dynamic consistency and that this result is even stronger among ambiguity av
erse subjects. Highlights We experimentally test consequentialism versus dynamic consistency. The design is a dynamic extension of the 3-color Ellsberg urn. More subjects violate dynamic consistency than consequentialism. Violating subjects (for both axioms) are less confident in their responses. </p
WikiWarsDE Corpus
No full textThe WikiWarsDE corpus is a German corpus containing Wikipedia articles with annotations of temporal expressions. Its creation was motivated by the English WikiWars corpus (Mazur
& Dale 2010). WikiWarsDE was developed to support research on temporal information extraction and normalization. The 22 documents contain 95,604 tokens and 2,240 temporal expressions annotated following TIDES TIMEX2 annotation guidelines