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| Registros recuperados: 30 | |
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| Spraggon, John M.; Oxoby, Robert J.. |
| We explore the effects of recommended play and the presentation of payoff information on behavior in an ambient-based policy instrument experiment. Specifically, we test the effects of recommended play (via a description of marginal decision making) and a payoff table on the behavior of individuals facing an ambient-based policy instrument. We find that recommended play and the presentation of a payoff table increases the use of the socially optimal strategy, thereby increasing efficiency. These results suggest that providing decision makers with a richer description of the decision making environment significantly reduces decision error, significantly improving the efficiency of ambient-based policy instruments. |
| Tipo: Journal Article |
Palavras-chave: Ambient pollution instruments; Recommended play; Experiments; Environmental Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/90832 |
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| Kovarik, Jaromir; Mengel, Friederike; Romero, Jose Gabriel. |
| We study (anti-) coordination problems in networks in a laboratory experiment. Partici- pants interact with their neighbours in a fixed network to play a bilateral (anti-) coordination game. Our main treatment variable is the extent to which players are heterogeneous in the number of connections (neighbors) they have. Other network characteristics are held constant across treatments. We find the following results. Heterogeneity in the number of connections dramatically improves the rate of successful coordination. In addition, even though there is a multiplicity of Nash equilibria theoretically, a very sharp selection is observed empirically: the most connected player can impose her preferred Nash equilibrium almost always and observed Nash equilibria are... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Game Theory; Networks; Coordination Problems; Experiments; Risk and Uncertainty; C72; C90; C91; D85. |
| Ano: 2010 |
URL: http://purl.umn.edu/61370 |
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| Satti Hassan Yasir; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China; QingXi Liao; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China; Jiajia Yu; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China; Dali He; Department of Agricultural Mechanization, College of Engineering, Huazhong Agricultural University, Wuahn-China. |
| The objective of this study was to apply the precision metering on wheat seeding to overcome seed damage, seed loss and non-uniform distribution. Accordingly, a prototype of the pneumatic precision metering device for wheat was developed. The performance of the device, including quality of feed index (QFI), multiple index (MULI), miss index (MISI) and seed rate expressed in number of kernels per meter length (KPM), was investigated under laboratory conditions in Wuhan using a test stand with camera system. The results revealed that the rotating speed (RS) and negative pressure (NP) and their interactions had a significant effect on these variables. The maximum QFI (92.98%) was obtained at rotating speed of 19.0 rpm and negative pressures of 2.5 kPa... |
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Palavras-chave: Wheat; Experiments; Performance indices; Pneumatic precision metering device. |
| Ano: 2012 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2073 |
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| Lybbert, Travis J.; Galarza, Francisco B.; McPeak, John G.; Barrett, Christopher B.; Boucher, Stephen R.; Carter, Michael R.; Chantarat, Sommarat; Fadlaoui, Aziz; Mude, Andrew G.. |
| The effective design and implementation of interventions that reduce vulnerability and poverty require a solid understanding of underlying poverty dynamics and associated behavioral responses. Stochastic and dynamic benefit streams can make it difficult for the poor to learn the value of such interventions to them. We explore how dynamic field experiments can help (i) intended beneficiaries to learn and understand these complicated benefit streams, and (ii) researchers to better understand how the poor respond to risk when faced with nonlinear welfare dynamics. We discuss and analyze dynamic risk valuation experiments in Morocco, Peru, and Kenya. |
| Tipo: Journal Article |
Palavras-chave: Poverty; Risk and uncertainty; Dynamics; Experiments; Kenya; Morocco; Peru; International Development; Research Methods/ Statistical Methods; Risk and Uncertainty. |
| Ano: 2010 |
URL: http://purl.umn.edu/90791 |
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| Spraggon, John M.. |
| This paper tests the ability of an exogenous targeting instrument to induce compliance when the principal cannot observe the actions of individual agents. A number of papers show that although these instruments are able to induce groups to the target outcome, they are not able to induce individuals to make socially optimal decisions in a number of different controlled laboratory experiments. This study investigates whether the information individuals have about others’ payoffs affects how they make their decisions in this environment. Ledyard (1995) suggests that when subjects have less information in public goods experiments they are more likely to choose the Nash equilibrium decision. However, as he points out, this effect differs between groups with... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Moral Hazard in Groups; Exogenous Targeting Instruments; Experiments; Information; Research Methods/ Statistical Methods; C72; C92; D70. |
| Ano: 2007 |
URL: http://purl.umn.edu/7383 |
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| Karlan, Dean S.; McConnell, Margaret. |
| Theories abound for why individuals give to charity. We conduct a field experiment with donors to a Yale University service club to test the impact of a promise of public recognition on giving. Some may claim that they respond to an offer of public recognition not to improve their social standing, but rather to motivate others to give. To tease apart these two theories, we conduct a laboratory experiment with undergraduates, and found no evidence to support the alternative, altruistic motivation. We conclude that charitable gifts increase in response to the promise of public recognition primarily because of individuals' desire to improve their social image. |
| Tipo: Working Paper |
Palavras-chave: Prosocial behavior; Experiments; Voluntary contributions; Financial Economics; Public Economics; D64; C90; L30. |
| Ano: 2012 |
URL: http://purl.umn.edu/121670 |
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| Morvan, Barthelemy; Bles, G; Dumergue, Nicolas; Priour, Daniel. |
| The evaluation of the mesh opening stiffness of fishing nets is an important issue in assessing the selectivity of trawls. It appeared that a larger bending rigidity of twines decreases the mesh opening and could reduce the escapement of fish. Nevertheless, netting structure is complex. A netting is made up of braided twines made of polyethylene or polyamide. These twines are tied with non-symmetrical knots. Thus, these assemblies develop contact-friction interactions. Moreover, the netting can be subject to large deformation. In this study, we investigate the responses of netting samples to different types of solicitations. Samples are loaded and unloaded with creep and relaxation stages, with different boundary conditions. Then, two models have been... |
| Tipo: Text |
Palavras-chave: Numerical model; Experiments; Braided twine; Mesh opening rigidity; Large deformation.. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00348/45899/45581.pdf |
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| Registros recuperados: 30 | |
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