On the other hand, because past output of a more driven agent will seem to the principal to reflect lower ability, there is an incentive to decrease effort to signal low drive. ECON304 Honours Intermediate Microeconomic Analysis I Sections. Find an in-depth biography, exhibitions, original artworks for sale, the latest news, and sold auction prices. Lǐ Wéi (Chinese: 李嵬) is a British linguist of Manchu-Chinese parentage. What reporting protocol elicits the most information? See full bio » 1 nomination. We also identify a critical cutoff level of cognitive ability, determined by the network structure, above which an agent’s learning outcome remains the same even when her cognitive ability increases. He is a Fellow of the Academy of Social Sciences (United Kingdom) and a Fellow of the Royal Society of Arts. A sender may communicate with a decision maker through intermediaries. Iona Building 154 604-822-2839. I assume that the objective sender and intermediary pass on their best information, while the biased ones prefer a particular action but also have reputational concerns. This article studies a principal-agent problem where the only commitment for the uninformed principal is to restrict the set of decisions she makes following a report by the informed agent. See more awards » Associate Professor. In equilibrium, this comparative advantage determines whether the high type chooses a positive or negative campaign. Lǐ Wéi (Chinese: 李嵬) is a British linguist of Manchu-Chinese parentage. See available photographs, paintings, and prints and multiples for sale and learn about the artist.
ECON515B Special Topics in Microeconomic Theory - TOPICS ECON THRY Sections. He is Chair of Applied Linguistics and Director of the UCL Centre for Applied Linguistics at the UCL Institute of Education, University College London. In my spare time, I enjoy reading, yoga and arts in all its glorious forms. A candidate for political office has private information about his and his rival’s qualifications. Li Wei Professor, Department of Physics and Computer Science Biography / Academic Background I received my PhD in Physics from the University of Waterloo in 2000, and my MSc in Optics from Chinese Academy of Science in 1990. Credit will be granted for only one of ECON 303 or ECON 306. Agents know only their local networks, consisting of their neighbors and the links among them. Li Wei was born in Beijing, China, of Manchu-Chinese parents and was initially trained as an English language teacher at the end of Mao's Cultural Revolution. The overriding theme of my research is how the presence of asymmetric information affects people’s incentive to communicate truthfully, why many commonly-observed channels of communication exist as they do, and how we should design communication protocols to best adapt to these incentives. Generally an optimal equilibrium does not maximize the number of decisions the principal can credibly retain. His PhD supervisor was the sociolinguist Lesley Milroy with whom he worked on a number of research projects. His research interests are in bilingualism and multilingualism. [2] He is editor-in-chief of the International Journal of Bilingualism,[3] co-editor of Applied Linguistics Review, Global Chinese,Chinese Language and Discourse, and editor of the Wiley-Blackwell book series Research Methods in Language & Linguistics. Currently he is Director of the ESRC UCL, Bloomsbury and East London Doctoral Training Partnership. An agent’s productivity depends on his responsiveness to existing incentives (“drive”). The talk is titled Multi-competence, Translanguaging and Mobile Self-directed Learning and will take place on October 29, 1pm (EDT, Montreal). He joined Birkbeck, University of London in January 2007 as Chair of Applied Linguistics. Agents in a network want to learn the true state of the world from their own signals and their neighbors’ reports. Surprisingly, agents with moderate cognitive ability are capable of partialing out old information and learn correctly in social quilts, a tree-like union of cliques (fully connected subnetworks). Over the long term, this heterogeneity in drive may create significant incentives for the agent to work hard even with vanishingly small amount of existing incentives, explicit or implicit. He has an MA in English Language Studies and a PhD in Speech Sciences from Newcastle. He worked as an English teacher for two and a half years before studying for a BA in English language and literature at Beijing Normal University. As a result, it can give the principal a higher expected payoff than delegating the decision to the agent. Until the end of 2014, he was Pro-Vice-Master of Birkbeck College, Univers… Wei.Li@ubc.ca. Bio; Research; Teaching; Data; Resources; Personal; Seminars; I became deeply interested in the interaction of information and incentives in various economics and political environment during my master studies at Harvard University. Agents with low cognitive ability may fail to learn in any network, even when they receive a large number of signals. Moreover, the biased sender may be more likely to use an intermediary perceived to be more biased. The paper finds that “mind changes” (inconsistent reports) can signal talent if a smart agent improves faster. To maximize incentives, the principal wants to observe a noisy measure of the agent’s effort—such as the number of hours he works—early but not late in his career. He became Professor of Applied Linguistics at Newcastle University in 1998, the first Chinese to achieve full professorial rank in linguistics in a UK university, and was Director of the Centre for Research in Linguistics between 1999 and 2002 and founding Head of the School of Education, Communication and Language Sciences between 2002 and the end of 2006. Wei Young surprises everyone at a birthday celebration for the grandmother. Looking for something to watch? Risk and uncertainty, some concepts in game theory, adverse selection, moral hazard, bargaining, auctions. You're kindly invited to our second virtual Plurilingual Lab Speaker Series event with Dr. Li Wei of UCL Institute of Education, University College London. Despite their limited network knowledge, agents learn correctly when the network is a social quilt, a tree-like union of cliques. I show that the biased intermediary selectively incorporates the sender’s information to push his agenda, and his truth-tellingincentives always decrease in those of the biased sender. Credit will be granted for only one of ECON 204, ECON 301, ECON 304, ECON 315, COMM 295 or FRE 295. Chiyun Rou controls the Li family with her arrogant daughter Changle.
Wei Li Associate Professor. We propose a novel model in which agents with limited and heterogeneous cognitive ability—modeled as limited depths of reasoning—learn from their neighbors in social networks. Also, sequential reports dominate when the principal’s decision is very sensitive to information; a single report dominates if the mediocre agent’s signals improve faster, or the agent is likely mediocre. Join Facebook to connect with Li Wei and others you may know.
Amongst Li Wei's publications are the best selling The Bilingualism Reader, The Routledge Applied Linguistics Reader, "Applied Linguistics" (Wiley-Blackwell, 2014), "Translanguaging: Language, Bilingualism and Education" (with Ofelia Garcia, Palgrave Macmillan, 2014) which won the 2015 BAAL Book Prize, and The Blackwell Guide to Research Methods in Bilingualism and Multilingualism which won the 2009 British Association for Applied Linguistics Book Prize. Episode 4 45m. On the one hand, because more driven agents work harder in response to existing incentives than less driven ones—and therefore pay is increasing in perceived drive—there is a motive to increase effort to signal high drive. International Journal of Bilingualism: Homepage, https://en.wikipedia.org/w/index.php?title=Li_Wei_(linguist)&oldid=983517333, Academics of the UCL Institute of Education, BLP articles lacking sources from February 2012, Articles containing Chinese-language text, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 October 2020, at 17:57. The former effect dominates early in the career, and the latter effect dominates towards the end.
Hence measures making it more costly for the sender to lie worsen the biased intermediary’s distortion, and may make the decision maker strictly worse off. The collapsed Xin'er is saved by the kind-hearted Li Wei Young, who lives her life in obscurity despite being the daughter of the noble Li Xiaoran. A privately informed sender may influence the decision maker through an intermediary who is better informed than him. Further, competition helps the high type separate. Li Wei is known for his work on House of Flying Daggers (2004), In the Name of the King: A Dungeon Siege Tale (2007) and Ying xiong (2002). Every agent is Bayesian with the (possibly misspecified) prior belief that her local network is the entire network.We present a tractable learning rule to implement such locally Bayesian learning:each agent extracts new information using the full history of observed reports in her local network. Curriculum Vitae. Episode 3 45m. ECON303 Intermediate Microeconomics II Sections. A high type candidate has a comparative advantage in negative campaigns if, relative to the low type, he can lower the voter’s belief about his rival more effectively than he can raise her belief about himself and vice versa. He went to Newcastle University to teach Chinese in 1986. British Association for Applied Linguistics:Book Prize 2009 Li Wei & Melissa G. Moyer.
We show that an ex ante optimal equilibrium for the principal corresponds to a finite partition of the state space, and each retained decision is ex post suboptimal for the principal, biased toward the agent’s preference. This is a public event and all are welcome. I show that the biased sender and the biased intermediary’s reporting truthfulness are strategic complements. View the profiles of people named Li Wei. These “drive-signaling incentives” are strongest with intermediate levels of existing incentives. Experts often collect and report information over time. A more informative positive (negative) campaign generates a more accurate public signal about his own (his rival’s) qualifications, but costs more. Each agent tracks old information using Bayes-like formulas, and uses a short cut when reasoning on behalf of multiple neighbors exceeding her cognitive ability. Consumer behaviour, producer theory, exchange, monopoly, oligopoly, externalities, public goods, general equilibrium and welfare economics. The biased sender is less likely to use an intermediary than an objective sender is if his reputational concerns are low; but more likely to do so if his reputational concerns are moderate.
Compared to no commitment, limited authority improves the quality of communication from the agent. In the Name of the King: A Dungeon Siege Tale, Step Up 6 Is Being Tailor-Made for Chinese Audiences, Lionsgate, partners plot Chinese-language 'Step Up 6', Badass Trailer for the Animated Feature Master Jiang And The Six Kingdoms, The Most Beautiful Shots in Movie History, What to Watch if You Miss the "Game of Thrones" Cast. 3. But they fail to learn when a network contains interlinked circles (echo chambers), despite an arbitrarily large number of correct signals. He is Chair of Applied Linguistics and Director of the UCL Centre for Applied Linguistics at the UCL Institute of Education, University College London. Here, a principal receives reports sequentially from an agent with privately known ability, who observes two signals about the state of the world. Wei Li. I continued to pursue this topic at MIT, where I obtained my Ph.D.
He is a Fellow of the Academy of Social Sciences (United Kingdom) and a Fellow of the Royal Society of Arts.
Choose an adventure below and discover your next favorite movie or TV show. Currently he is Director of the ESRC UCL, Bloomsbury and East London Doctoral Training Partnership. We analyze ways in which heterogeneity in responsiveness to incentives (“drive”) affects employees’ incentives and firms’ incentive systems in a career concerns model. Please click on paper titles for abstracts and full text downloads. The signals differ in initial quality and, unlike previous work, differ in quality improvement.
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