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	Provedor de dados AgEcon (7) ArchiMer (3) BJMBR (1) Autor Bayer, Patrick (4) Cutrona, Carolyn E. (2) Garasky, Steven B. (2) Gibbons, Frederick X. (2) Jensen, Helen H. (2) Timmins, Christopher (2) Zhylyevskyy, Oleksandr (2) Begout, Marie-laure (1) Dubroca, Laurent (1) Hoshino,K. (1) Lenneberg-Hoshino,C. (1) Mahévas, Stephanie (1) Medeiros,R. (1) Millot, Sandie (1) Mullers, Ralf H. E. (1) Pintoff, Randi (1) Pistorius, Pierre A. (1) Pozen, David E. (1) Ross, Stephen L. (1) Thiebault, Andrea (1) Mais... Palavra-chave Social interactions (11) Demand and Price Analysis (3) Institutional and Behavioral Economics (3) R0 (3) Agglomeration (2) Agricultural and Food Policy (2) C35 (2) Congestion (2) Consumer/Household Economics (2) Discrete choice models (2) Economic geography (2) Endogenous sorting (2) Food Consumption/Nutrition/Food Safety (2) Fruit and vegetable consumption (2) H0 (2) Health Economics and Policy (2) Healthy food choices (2) I12 (2) J0 (2) J15 (2) Mais... Tipo do documento Working or Discussion Paper (4) Conference Paper or Presentation (3) Text (3) Info:eu-repo/semantics/other (1) Ano 2018 (2) 2011 (2) 2009 (1) 2007 (1) 2005 (1) 2003 (3) 1998 (1) Mais... País United States (7) France (3) Brazil (1) Idioma Inglês (11)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 11 Primeira ... 1 ... Última Neuroethologic differences in sleep deprivation induced by the single- and multiple-platform methods BJMBR Medeiros,R.; Lenneberg-Hoshino,C.; Hoshino,K.; Tufik,S.. It has been proposed that the multiple-platform method (MP) for desynchronized sleep (DS) deprivation eliminates the stress induced by social isolation and by the restriction of locomotion in the single-platform (SP) method. MP, however, induces a higher increase in plasma corticosterone and ACTH levels than SP. Since deprivation is of heuristic value to identify the functional role of this state of sleep, the objective of the present study was to determine the behavioral differences exhibited by rats during sleep deprivation induced by these two methods. All behavioral patterns exhibited by a group of 7 albino male Wistar rats submitted to 4 days of sleep deprivation by the MP method (15 platforms, spaced 150 mm apart) and by 7 other rats submitted to... Tipo: Info:eu-repo/semantics/other Palavras-chave: Sleep deprivation methods; Stress; Social interactions; Group crowding effects. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000500012 "M2B" package in R: Deriving multiple variables from movement data to predict behavioural states with random forests ArchiMer Thiebault, Andrea; Dubroca, Laurent; Mullers, Ralf H. E.; Tremblay, Yann; Pistorius, Pierre A.. 1. The behaviour of individuals affect their distributions and is therefore fundamental in determining ecological patterns. While, the direct observation of behaviour is often limited due to logistical constraints, collection of movement data has been greatly facilitated through the development of bio-logging. Movement data obtained through tracking instrumentation may potentially constitute a relevant proxy to infer behaviour. 2. To infer behaviour from movement data is a key focus within the "movement ecology" discipline. Statistical learning constitutes a number of methods that can be used to assess the link between given variables from a fully informed training dataset and then predict the values on a non-informed variable. We chose the random forest... Tipo: Text Palavras-chave: Cape gannet; Fisheries; GPS; Local enhancement; Machine learning; Onboard observers; Social interactions; Video cameras. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00445/55683/57354.pdf Findings from an exploratory study on the governance of a French fishery ArchiMer Tissière, Laurie; Mahévas, Stephanie; Trouillet, Brice. In marine fisheries science, the application of social sciences and the increasing use of a multidisciplinary approach have enriched fisheries research through new paradigms. The stance on fisheries governance aims to complement bio-economic approaches and to break with the “tragedy of the commons” premise by focusing on the institutions and network actors at the heart of knowledge, representations, actions and decisions systems. Although the French-European context is largely determined by The Common Fisheries Policy, governance levers and an organised network of actors have been identified in demersal and benthic fisheries. In the present study, the observation of dialogue meetings identified the stakeholder strategies and interactions used to activate... Tipo: Text Palavras-chave: Governance; Fishery; Common Fisheries Policy; Stakeholders; Social interactions. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00423/53474/55105.pdf Individual fish rhythm directs group feeding: a case study with sea bass juveniles (Dicentrarchus labrax) under self-demand feeding conditions ArchiMer Millot, Sandie; Begout, Marie-laure. The long term influence of individual biological rhythms on group feed demand behaviour was investigated in European sea bass (Dicentrarchus labrax) held under controlled environmental conditions with an on-demand feeding system. The experiment was realized over 219 days with 190 fish distributed on 4 tanks. Sea bass had a mean body mass comprised between 139 g to 183 g. The number of feed demand acts by each individual was calculated daily, and the population could thus be partitioned into three categories (high-, low-and zero-triggering fish). The duration of the period that an individual held high-triggering status could vary, but was 63 +/- 16 days on average. The transition period between two highest-triggering fish in one tank was on average 4 +/- 4... Tipo: Text Palavras-chave: Dicentrarchus labrax; Self feeder; Social interactions; Feed demand leader; Feeding rhythms. Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6874.pdf Place of Work and Place of Residence: Informal Hiring Networks and Labor Market Outcomes AgEcon Bayer, Patrick; Ross, Stephen L.; Topa, Giorgio. We use a novel dataset and research design to empirically detect the effect of social interactions among neighbors on labor market outcomes. Specifically, using Census data that characterize residential and employment locations down to the city block, we examine whether individuals residing in the same block are more likely to work together than those in nearby blocks. We find evidence of significant social interactions operating at the block level: residing on the same versus nearby blocks increases the probability of working together by over 33 percent. The results also indicate that this referral effect is stronger when individuals are similar in sociodemographic characteristics (e.g., both have children of similar ages) and when at least one individual... Tipo: Working or Discussion Paper Palavras-chave: Neighborhood effects; Job referrals; Social interactions; Social networks; Labor supply; Labor and Human Capital; J0; J2; J3; J6; R0. Ano: 2005 URL: http://purl.umn.edu/28433 Identification and Estimation of Social Interaction-Based Models: A Changes-In-Changes Approach with an Application to Adolescent Substance Use AgEcon Yang, Muzhe. This paper outlines a method for detecting and assessing the strength of social interactions through a changes-in-changes design. The proposed approach is based on a linear-in-means model and aims to resolve the "reflection problem", unobserved heterogeneities and endogenous group formation that plague identification of social interactions. Using longitudinal data from Add Health with rarely collected information on peer group's composition, we explore an exogenous variation in peer's drug use induced by a "mover friend" that occurs between Add Health's survey periods. This quasi-experiment shares a similar nature of a policy intervention of removing drug-user friends from a peer group. Such treatment-control group differences together with changes over... Tipo: Conference Paper or Presentation Palavras-chave: Social interactions; Linear-in-expectations; Linear-in-means; Difference-in-differences; Changes-in-changes; Demand and Price Analysis. Ano: 2007 URL: http://purl.umn.edu/9800 A Note on the Equilibrium Properties of Locational Sorting Models AgEcon Bayer, Patrick; Timmins, Christopher. A central feature of many models of location choice – whether of firms or households, within or across cities – is the role of local interactions or spillovers, whereby the payoffs from choosing a location depend in part on the number or attributes of other individuals or firms that choose the same or nearby locations in equilibrium. The main goal of this paper is to develop the equilibrium properties of a broadly applicable and readily estimable class of sorting models that allow the location decision to depend on both fixed local attributes (including unobserved attributes) and such local interactions. In particular, we prove uniqueness in the case of congestion effects and use a series of simulations to demonstrate that a unique equilibrium is more... Tipo: Working or Discussion Paper Palavras-chave: Local spillovers; Social interactions; Economic geography; Natural advantage; Endogenous sorting; Discrete choice models; Agglomeration; Congestion; Random utility; Industrial Organization; H0; R0; R2; R3. Ano: 2003 URL: http://purl.umn.edu/28378 Building Criminal Capital Behind Bars: Social Learning in Juvenile Corrections AgEcon Bayer, Patrick; Pintoff, Randi; Pozen, David E.. This paper analyzes the influence that juvenile offenders serving time in the same correctional facility have on each other’s subsequent criminal behavior. The analysis is based on data on over 8,000 individuals serving time in 169 juvenile correctional facilities during a two-year period in Florida. These data provide a complete record of past crimes, facility assignments, and arrests and adjudications in the year following release for each individual. To control for the non-random assignment of juveniles to facilities, we include facility fixed effects in the analysis. This ensures that the impact of peers on recidivism is identified using only the variation in the length of time that any two individuals serving a sentence in the same facility happen to... Tipo: Working or Discussion Paper Palavras-chave: Social learning; Peer effects; Social interactions; Recidivism; Juvenile crime; Human capital accumulation; Labor and Human Capital; H0; J0; J2; K1. Ano: 2003 URL: http://purl.umn.edu/28511 Effects of Family, Friends, and Relative Prices on Fruit and Vegetable Consumption by African American Youths AgEcon Zhylyevskyy, Oleksandr; Jensen, Helen H.; Garasky, Steven B.; Cutrona, Carolyn E.; Gibbons, Frederick X.. Paper for presentation at the Northeastern Agricultural & Resource Economics Association’s Workshop on Economics and Child Nutrition Programs, AAEA & NAREA Joint Annual Meeting, Pittsburgh, Pennsylvania, July 23, 2011. Tipo: Conference Paper or Presentation Palavras-chave: Fruit and vegetable consumption; Healthy food choices; Social interactions; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics; Research Methods/ Statistical Methods; I12; J15; C35; Q18. Ano: 2011 URL: http://purl.umn.edu/107086 Effects of Family, Friends, and Relative Prices on Fruit and Vegetable Consumption by African American Youths AgEcon Zhylyevskyy, Oleksandr; Jensen, Helen H.; Garasky, Steven B.; Cutrona, Carolyn E.; Gibbons, Frederick X.. Facilitating healthy eating among young people, particularly among minorities who are at high risk for gaining excess weight, is at the forefront of current policy discussions and food program reviews. We investigate the effects of social interactions and relative prices on fruit and vegetable consumption by African American youths using rich behavioral data from the Family and Community Health Study and area-specific food prices. We find the presence of endogenous effects between a youth and parent, but not between a youth and friend. Lower relative prices of fruits and vegetables tend to increase intakes. Results suggest that health interventions targeting a family member may be an effective way to increase fruit and vegetable intake by African Americans... Tipo: Conference Paper or Presentation Palavras-chave: Social interactions; Healthy food choices; Fruit and vegetable consumption; African American youth; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Health Economics and Policy; Institutional and Behavioral Economics; I12; J15; C35. Ano: 2011 URL: http://purl.umn.edu/103411 Estimating Equilibrium Models of Sorting Across Locations AgEcon Bayer, Patrick; Timmins, Christopher. With the growing recognition of the role played by geography in all sorts of economic problems, there is strong interest in measuring the size and scope of local spillovers (i.e., simple anonymous agglomeration or congestion effects, or more complicated interactions between individuals or firms of specific types). It is well-understood, however, that such spillovers cannot be distinguished from unobservable local attributes using just the observed location decisions of individuals or firms. We propose an empirical strategy for recovering estimates of spillovers in the presence of unobserved local attributes for a broadly applicable class of equilibrium sorting models. This approach relies on an instrumental variables strategy derived from the internal... Tipo: Working or Discussion Paper Palavras-chave: Local spillovers; Location choice; Economic geography; Natural advantage; Social interactions; Network effects; Endogenous sorting; Discrete choice models; Agglomeration; Congestion; Institutional and Behavioral Economics; H7; R0; R2; R3. Ano: 2003 URL: http://purl.umn.edu/28448 Registros recuperados: 11 Primeira ... 1 ... Última

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