Info-Metrics Institute College of Arts and Sciences, American University Annual Report 2010 - 2011 Table of Contents Welcome Message from the Director………………………………………………………………………...4 Message from the Office of the Comptroller of the Currency…………………………………….5 Message from the U.S. Army Research Laboratory’s Army Research Office (ARO)……………6 Notes from the Advisory Board……………………………...……………………………………7 Graduate Students: In Their Own Words…...……………………………………………………..8 Thanks to our Sponsors……………………………………………………………………………9 Who We Are Photo Album…………………………………………………………………………………..…10 2010 – 2011 Advisory Board…………………………………………………………………….13 2010 – 2011 New Research Associates…………………………...……………………………..15 2010 - 2011 Visiting Fellows ……………………………………………………………………17 Affiliate Profiles…………….……………………………………………………………………19 What We Do Current Research Pieter Adriaans (University of Amsterdam)……………………………………………..21 Rossella Bernardini Papalia (University of Bologna)………………………………......22 James Bono (American University)………………………………………………….......22 Mehmet Caner (North Carolina State University)……………………………………….22 Marine Carrasco (University of Montreal………………………………………………..22 Ariel Caticha (SUNY Albany)…………………………………………………………...22 Duncan Foley (New School for Social Research and Santa Fe Institute)………………..23 A. Bowen Garrett (McKinsey & Co., and Urban Institute)…………………………….23 Ramo Gencay (Simon Fraser University)………………………………………………..23 John Geweke (UTS-Sydney)…………………………………………………………….23 Amos Golan (American University)……………………………………………………..24 Alastair Hall (University of Manchester)………………………………………………..24 Nathan Harshman (American University)……………………………………………….24 Atsushi Inoue ( NC State University)……………………………………………………24 George Judge (University of California-Berkeley)………………………………………24 Nicholas Kiefer (Cornell University)…………………………………………………….25 Robin Lumsdaine (American University)………………………………………………..25 2 Ilya Nemenman (Emory University)………...…………………………………………..25 Taisuki Otsu (Yale University)……………………..……………………………………25 M. Hashem Pesaran (University of Cambridge)… ……………………………………..26 Jeffrey R. Racine (McMaster University)………………………………………………..26 Eric Renault (Brown U)………………………………………………………………….27 Sherman Robinson (International Food Policy Research Institute)……………………27 Richard Scheines (Carnegie Mellon University)………………………………………...28 Richard Smith (University of Cambridge)……………………………………………….28 Michael Stutzer (University of Colorado-Boulder)……………………………………...28 David H. Wolpert (NASA Ames Research Center)……………………………………...28 Ximing Wu (Texas A & M University)………………………………………………….29 Victor Yakovenko (University of Maryland)……………………………………………29 2011 Summer Classes……………………………………………………………………………30 Events and Activities Institute Seminars………………………………………………………………………...31 Workshops and Conferences……………………………………………………………..32 Forthcoming Workshops and Conferences…………………………….………………...42 For More Information Institute Support………………………………………………………………………………….48 Website and Contact……………………………………………………………………………..49 3 September 2011 Message from the Director Info-metrics is the science and art of processing information. Generally speaking, all information is limited and all data are noisy. In practice, this means that all inferential problems are underdetermined as all scientific theories and models are based on limited and, at times, very scarce information. A major challenge for all scientists is how to reason under conditions of incomplete information. The Info-Metrics Institute and its affiliates work to address that challenge. In the Institute’s second year, we expanded our activities and focused on building the interdisciplinary aspects of the program. We welcomed visiting fellows and researchers from across the scientific spectrum and hosted two major meetings – the first with an emphasis on information-theoretic econometrics, statistics and modeling; the second focusing on the fundamental questions of inference and modeling within the natural sciences. A major objective of both sessions was research into the foundations of info-metrics and entropic inference. Our proceedings and special issue journal publication summarize much of this new research. In 2010-11, the Institute’s successes included: an increase in participants of the Institute’s core interdisciplinary research group; one major conference and one workshop (September 2010 and May 2011); nine short term Fellows (between three to fourteen days each); an affiliates’ meeting following each conference to discuss activities and research (about 25 affiliates); two graduate student summer fellowships; two short, hands-on classes taught by Ingmar Prucha and Amos Golan; a working paper series and an updated online resource page. We would like to thank the Office of the Comptroller of the Currency for its continued support as well as the Army Research Office for its generous one-time grant. Their support helped fund the majority of the Institute’s activities. We plan to keep pushing the research frontiers of info-metrics to develop a leading interdisciplinary Institute. Bookmark our Web site and check in frequently for updates. And please, give us your feedback and ideas – we welcome your suggestions. - Amos Golan, Director, Info-Metrics Institute 4 Message from the Office of the Comptroller of the Currency: The Info-Metrics Institute and Financial Reform The Office of the Comptroller of the Currency (OCC) supervises and regulates many of the largest banks in the country, banks that use increasingly complex modeling techniques in a continuously expanding range of applications. The OCC is pleased to have supported the Institute since its creation, in part because the Institute provides a way for OCC staff to enhance their modeling expertise through ongoing exposure to an active research community. OCC staff have adopted methods based in information theory for their own research; in addition, the activities of the Institute have helped make OCC staff better able to evaluate methods used by banks and verify that models are not used in ways that threaten the health of individual banks or the banking system. The recent financial crisis highlights another potentially important contribution of the Institute to the broader mission of the OCC. Analysts have cited various factors as potential contributors to the crisis – among them the failure of at least some of the quantitative models used in the financial sector. Although models were not the sole or even a primary cause of the crisis, some problems did stem from the use of analytical methods that were less effective than they should have been. The financial crisis emphasized that shortcomings in modeling approaches can contribute to significant losses for investors and financial firms, and impose serious economic costs on society more broadly. Drawing in part from the lessons of the financial crisis, the OCC recently published guidance for banks clarifying the OCC’s expectations for control of “model risk,” defined as the potential for adverse consequences from decisions based on incorrect or misused model outputs. One of the themes of this new guidance is that effective use of models by banks requires processes for ongoing improvement, including exploration and evaluation of new and better techniques and data. This makes it incumbent on modeling experts to pursue new and better methods and approaches for use in financial settings. The OCC and other regulators around the world continue working to strengthen the financial system through various initiatives as part of broader financial reform. But it is clear that improvements in financial modeling can play an important role in making the financial system less susceptible to failure. The Institute is well positioned to contribute to methodological improvements that can make a practical difference in the operation of banks and other financial firms. In this respect, the Institute supports reforms that ultimately strengthen the global financial system and help avert future crises. The OCC is pleased to see the development and growth of an organization like the Info-Metrics Institute with the potential for such broad and substantial benefits. -Mark Levonian, Senior Deputy Comptroller, Office of the Comptroller of the Currency 5 Message from the U.S. Army Research Laboratory’s Army Research Office (ARO) The U.S. Army Research Laboratory's Army Research Office (ARO) has co-sponsored several American University Info-Metrics Institute workshops. Our partnership has been very helpful in advancing important decision sciences research. ARO is the Army's premiere extramural basic research agency (link to web: http://www.arl.army.mil/www/default.cfm?page=70 ) in the engineering, physical, information and life sciences. ARO’s mission is to develop and exploit innovative, transformational scientific advances to insure the nation's technological superiority. The agency competitively selects and funds research proposals from educational institutions, nonprofit organizations, and private industry. ARO’s Decision and Neuro Sciences Program advances the frontiers of mathematics and neuroscience to create new paradigms which improve decision making in highly complex, dynamic and uncertain environments. Two major thrusts include: Mathematical modeling of neural processes, which involves quantitatively modeling decision behaviors in neural-anatomical or other observable measures to explain how factors such as complexity, uncertainty, stressors, social and other dynamics affect decisions. The decision-making “algorithm” of the brain is not understood. Highly complex, dynamic, parallel and redundant neural spiking behaviors complicate identification and mapping of the neural network of the brain involved in decision making. Recent advances in neuroscience provide important foundations to understand factors that affect decision making. These include neuro-economics and trust research, relationships of neural processes in handling uncertainty, time constraints and other stressors. Stochastic optimization and modeling, which addresses advances in mathematical algorithms to better address stochastic data properties common in highly dynamic, heterogeneous and complex operational environments, and in ill-conditioned and varying information such as in dynamic complex social contexts. For more information, please visit ARO’s webpage at www.arl.army.mil -Janet Spoonamore, Program Manager, Decision and Neuro Sciences Program Janet.Spoonamore@us.army.mil 6 Notes from the Advisory Board The Info-Metrics Institute gained momentum last year with two major conferences, the development of web resources, access to software, a working paper series, expansion of the active visitor associate program, and summer courses on info-metrics and spatial econometrics. The Institute’s program for the coming year is the most ambitious yet, with three conferences (including a spring 2012 workshop on infometrics and social networks), more visiting associates, and initiatives to make info-metrics techniques and research more accessible. We thank the Institute’s funders, conference planners, speakers and participants for working with us and we look forward to continuing to build a special network of researchers and learners. -Robert Lerman, Advisory Board Chair We are pleased to have welcomed so many of you to the Institute this year through our conferences, workshops, and short-term visitor program. The spirit of collegiality and interdisciplinary interest that we all embrace is what makes the Institute so special. For those of us who have come to info-metrics from the social sciences, the spring 2011 workshop, “Info-Metrics Across the Sciences,” exposed us to a new area of scholarly inquiry and emphasized the extent to which entropic inference crosses disciplinary boundaries. I’m confident that our fall 2011 workshop, “Philosophy of Information and Shrinkage Estimation,” will similarly expand our understanding and create further discussion synergies. As always, the Advisory Board welcomes your suggestions. - Robin Lumsdaine, Member 7 Graduate Students: In Their Own Words "Over the summer, I studied the information theoretic basis of multivariate measures of wellbeing. The aim of this research is to gain an understanding of the changes in the distribution of non-monetary measures of well-being across countries over time. The Institute’s summer graduate fellowship provided me with a great opportunity to explore the literature and extend my understanding of these information theoretic measures, while further honing my research skills under the tutelage of Amos." - Skipper Seabold “As my current research involves the empirical examination of structural transformation in Nicaraguan agriculture, I am primarily seeking to make a probabilistic statement about entry/exit, expansion, and contraction for different sizes/types of producers in Nicaragua’s agricultural sector. Such questions are typically approached with the use of Markov chain analysis, which is a method that is particularly suited to estimation via maximum entropy. Given that maximum entropy econometrics was unfamiliar territory until recently, I found the summer graduate fellowship to be extremely beneficial to my research in particular as well as my understanding of info-metrics in general. Through one-on-one meetings with the fields’ experts and discussions with fellow students, the fellowship is truly a great way to significantly develop one’s research skills in just a few short months.” – Heath Henderson 8 Thanks to our Sponsors The Info-Metrics Institute would like to thank the Office of the Comptroller of the Currency for partial support of all Info-Metrics Institute activities, the College of Arts and Sciences and the Department of Economics for supporting a number of activities, and the Army Research Office for supporting the Fall 2010 and Spring 2011 Conferences. 9 Institute Events 2010-2011 Institute participants gather for the beginning of the September 2010 conference Roundtable participants at the September 2010 conference L-R: Alastair Hall, Duncan Foley, Ariel Caticha, Aman Ullah, Yuichi Kitamura, Eric Renault, Robin Lumsdaine, Peter Robinson 10 Yuichi Kitamura presents a paper at the September 2010 conference President Neil Kerwin gives opening remarks during the May 2011 workshop 11 Ariel Caticha presents a paper at the May 2011 workshop Roundtable participants at the May 2011 workshop L-R: Nick Kiefer, David Wolpert, Robin Lumsdaine and Pieter Adriaans 12 2010-2011 Advisory Board Social Sciences Duncan Foley (New School for Social Research and Santa Fe Inst.) http://homepage.newschool.edu/~foleyd John Geweke (U. Iowa and UTS, Sydney) http://www.biz.uiowa.edu/faculty/jgeweke/ Alastair Hall (U. Manchester) http://personalpages.manchester.ac.uk/staff/alastair.hall/ George Judge (Berkeley) http://are.berkeley.edu/~judge/ Yuichi Kitamura (Yale) http://cowles.econ.yale.edu/faculty/kitamura.htm Robert Lerman, Chair (American U and Urban I) http://american.edu/cas/faculty/rlerman.cfm http://www.urban.org/about/RobertLerman.cfm Robin Lumsdaine (American U) http://www.american.edu/kogod/faculty/lumsdain.cfm Esfandiar (Essie) Maasoumi (Emory) http://userwww.service.emory.edu/~mboerck/ M. Hashem Pesaran (Cambridge) http://www.econ.cam.ac.uk/faculty/pesaran/ Eric Renault (Brown) http://news.brown.edu/new-faculty/2011-12/eric-renault Peter M. Robinson (London School of Economics) http://personal.lse.ac.uk/robinso1/ Richard Smith (Cambridge) http://www.econ.cam.ac.uk/faculty/smith/ Halbert L. White, Jr. (UC San Diego) http://weber.ucsd.edu/~hwhite/ Arnold Zellner (1927-2010) (Chicago) http://faculty.chicagobooth.edu/arnold.zellner/more/ 13 Philosophy and the Natural Sciences Pieter Adriaans (U. Amsterdam) http://staff.science.uva.nl/~pietera/ Ariel Caticha (SUNY Albany) http://www.albany.edu/physics/ariel_caticha.htm Raphael D. Levine (The Hebrew U and UCLA) http://www.fh.huji.ac.il/members/Levine/ http://faculty.chemistry.ucla.edu/institution/personnel?personnel_id=264627 14 Welcome, New Research Associates! Rossella Bernardini Papalia Department of Statistical Sciences University of Bologna, Italy http://www.unibo.it/SitoWebDocente/default.htm?UPN=rossella.bernardini%40unibo.it Marine Carrasco Département de Sciences Economiques Université de Montréal Montréal, Canada https://www.webdepot.umontreal.ca/Usagers/carrascm/MonDepotPublic/carrascm/index.htm A. Bowen Garrett McKinsey & Company Center for U.S. Health System Reform Urban Institute Health Policy Center http://healthreform.mckinsey.com/ http://healthpolicycenter.org Nathan L. Harshman Department of Physics American University http://nw08.american.edu/~harshman/ Atsushi Inoue Department of Agricultural and Resource Economics North Carolina State University http://www4.ncsu.edu/~atsushi Ilya Nemenman Departments of Physics and Biology Population Biology, Ecology, and Evolution Graduate Program Neuroscience Graduate Program Computational and Life Sciences Initiative Emory University http://menem.com/~ilya Taisuke Otsu Cowles Foundation & Department of Economics Yale University http://cowles.econ.yale.edu/faculty/otsu.htm 15 Sherman Robinson Environment and Production Technology Division (EPTD) Development Strategies and Governance Division (DSGD) International Food Policy Research Institute (IFPRI), Washington, D.C. http://www.ifpri.org/staffprofile/sherman-robinson Victor M. Yakovenko Department of Physics University of Maryland, College Park http://physics.umd.edu/~yakovenk 16 2010-2011 Visiting Fellows Fall 2010 Ramo Gencay (September 17 - October 5, 2010) Info-Metrics Institute Visiting Senior Fellow Simon Fraser University http://www.sfu.ca/~rgencay Luca Secondi (September 22 - October 10, 2010) Info-Metrics Institute Visiting Junior Fellow University of Florence Alastair Hall (September 23 - 28, 2010) Info-Metrics Institute Visiting Senior Fellow University of Manchester http://personalpages.manchester.ac.uk/staff/alastair.hall/ Ximing Wu (September 23 and October 7, 2010) Info-Metrics Institute Visiting Fellow Texas A&M University http://agecon2.tamu.edu/people/faculty/wu-ximing/ Eric Renault (October 19 - 27, 2010) Info-Metrics Institute Visiting Senior Fellow Distinguished Professor of Economics, UNC at Chapel Hill http://www.unc.edu/depts/econ/profiles/renault.htm Spring 2011 Pieter Adriaans (April 30 - May 14, 2011) Info-Metrics Institute Visiting Senior Fellow Professor of Learning and Adaptive Systems Universiteit van Amsterdam http://staff.science.uva.nl/~pietera/ 17 Ariel Caticha (May 31 - June 4, 2011) Info-Metrics Institute Visiting Senior Fellow Professor of Physics SUNY–Albany http://www.albany.edu/physics/ariel_caticha.htm Steve Pincus (April 25 - 27, 2011) Info-Metrics Institute Visiting Senior Fellow Aman Ullah (March 21 - 25, 2011) Info-Metrics Institute Visiting Senior Fellow University of California, Riverside http://economics.ucr.edu/ullah.html 18 Affiliate Profiles Esfandiar “Essie” Maasoumi advances the objectives of the Institute by sharing his extensive knowledge in the disciplines of economics, econometrics, financial econometrics, information theory and information-theoretic estimation methods. Essie’s wide-ranging areas of research include nonlinear time series, nonparametric estimation methods, tests for heteroskedasticity and structural change, measures of welfare and mobility, and the study of neural networks. He serves as the Arts and Sciences Distinguished Professor of Economics at Emory University in Atlanta and he is the editor of Econometric Reviews. He has been a Fellow of the Journal of Econometrics since 1989 and a Fellow of the Royal Society since 1991. In 2011, he was named as a Fellow of the American Statistical Association. Essie’s 1993 compendium in Econometric Reviews is the first survey article on information theory in economics and econometrics. He is ranked 37th in the world in The Econometricians’ Hall of Fame. Chemical Physicist Raphael “Raphy” Levine brings the interdisciplinary work of the Institute to life through his expertise in the foundation of information theory, maximum entropy and the fundamentals of the natural sciences. Raphy is widely known for his contributions to the role of energy in chemical reactions, but his work also involves examining more abstract issues. “For this, methodologies based on information theory and on algebraic quantum mechanics are useful, as well as models that emphasize key aspects of the problem and allow for a simple conceptual picture of the dynamics as much as exact numerical simulations,” he says. Raphy's work combines the principle of maximum entropy with information theoretic inversion procedures to the basics of chemical, physical and biological applied and theoretical research. He is a member of Academia Europaea, American Academy of Arts and Sciences, American Philosophical Society, International Academy of Quantum Molecular Science, Israel Academy of Sciences & Humanities, Max Planck Society, Royal Danish Academy of Sciences and Letters, and the U.S. National Academy of Sciences. He was Alfred P. Sloan Fellow and has honorary degrees from the Technische Universität München and from Liege University. He has been the Miller Research Professor at UC Berkeley, the A.D. While Professor at Large at Cornell, and the 19 Max Born Professor of Natural Philosophy at the Hebrew University. He has received the Wolf Prize in Chemistry, the Max Planck Prize for International Cooperation and other awards. Raphy currently serves as distinguished professor of chemistry in the College of Letters and Science and as distinguished professor of medical and molecular pharmacology at the School of Medicine of UCLA. He also serves as a member of the editorial board of the Proceedings of the National Academy of Sciences and of other scientific publications. 20 Our Work – Promoting Interdisciplinary Research Through their research, each of the Institute's Affiliates are pushing the boundaries of information processing and building the Institute's reputation as a world class academic resource. We asked each of our Affiliates to provide information about their current projects, and we received a diverse array of examples. Pieter Adriaans (University of Amsterdam) Current research: Philosophy of information, generalized Kolmogorov complexity (with Golan), mathematical basis for a theory of facticity, study of data sets that show so-called saw tooth curve dependencies (with Schultes) Recent publications: Philosophy of information, Stanford Encyclopedia of Philosophy. This year I have mainly worked on various aspects of philosophy of information. An extensive paper for the Stanford Encyclopedia of Philosophy about this subject will appear before the end of the year. In this paper I give an overview of the history of the concept of information in western philosophy from antiquity to modern times. In the systematic part of the paper I analyze various philosophical problems in the field of complexity theory and information theory. As far as I know this is the first comprehensive treatment of this subject of such a scope. During a stay at the Info-metrics Institute I worked with Amos Golan on the concept of Generalized Kolmogorov complexity: an attempt to define a complexity measure that satisfies Zellner’s Information conservation principle. This will form the proper mathematical basis for a theory of facticity that I have been working on for a couple of years. Facticity is the amount of selfinformation in a data-set and it appears to be an important concept. With Erik Schultes I investigated data sets that show so-called saw tooth curve dependencies: a linear relation of two variables that suddenly collapses in to a powerlaw. I showed that these “edge” of-chaos’ phenomena can be understood theoretically with help of the concept of facticity. This work will contribute to the Atlas of Complexity project for which we got a grant of the Templeton Foundation. Another project that starts in September 2011 is the Data to Semantics effort (http://www.data2semantics.org/) in the Dutch Commit framework. It will last for four years. My contribution will be the development of various complexity measures for e-science data sets, that help us to estimate which types of queries and learning algorithms could be successful. To give some examples: the World Wide Web seems to converge to a characteristic set for the English language in which all relevant constructions occur at least once, for descriptions of the human cell, brain or DNA we are still far from such a convergence). For the Dutch science program Labyrint I made a feature about facticity that has been broadcasted in September. 21 Rossella Bernardini Papalia (University of Bologna) Current research: Exploration of entropy-based methods in ecological inference with spatial dependence; small area estimation problems; and spatial econometric models for panel data James Bono (American University) Current research: Investigation of entropic inference as a solution concept in noncooperative games Development of a statistical strategic model of air carrier behavior Development of statistical strategic models of cyber security for smart energy grids Mehmet Caner (North Carolina State University) Current research: Adaptive lasso with heteroskedastic data Instrumental variable selection Recent publications: A Near Minimax Risk Bound: Adaptive Lasso with Heteroskedastic Data in Instrumental Variable Selection (with M. Fan) Marine Carrasco (University of Montreal) Current research: Generalization of empirical likelihood estimation to handle a continuum infinite number of moment conditions Regularization techniques of the covariance matrix and its application to portfolio selection in finance Ariel Caticha (SUNY Albany) Current research: Development of general methods of entropic and Bayesian inference Application of principles of entropic inference to the foundations of physics Quantum theory and the derivation of the Schroedinger equation, of uncertainty relations, and an analysis of the quantum measurement problem Application of principles of entropic inference to economic modeling by focusing attention on simple models of highly idealized economies (with Amos Golan) 22 Duncan Foley (New School for Social Research and Santa Fe Institute) Recent publications: Global warming and economic externalities, Economic Theory (with Rezai and Taylor). Model description length priors in the urn problem, Computable, Constructive and Behavioural Economic Dynamics, Routledge. The long-period method and Marx’s theory of value, The Evolution of Economic Theory: Essays in Honour of Bertram Schefold, Routledge, Abington and New York. Mathematical formalism and political-economic content, INET. Dynamics of output and employment in the U.S. economy, NSSR SCEPA PERI Working Paper Series (with Basu). A. Bowen Garrett (McKinsey & Co. and Urban Institute) Current research: Economic and applied econometric modeling of health care and policy Using info-metric methods in micro-simulation modeling of health reforms Ramo Gencay (Simon Fraser University) Recent publications: Trading frequency and volatility clustering, Journal of Banking and Finance (with Xue). Financial Applications of Non-extensive Entropy, IEEE Signal Processing Magazine (with Gradojevic). Errors-in-variables estimation with wavelets, Journal of Statistical Computation and Simulation (with Gradojevic). Investment horizon effect on asset allocation between value and growth strategies, Economic Modelling (with In and Kim). John Geweke (University of Technology Sydney) Current research: Pooling financial and macroeconomic models for improved prediction Recent publications: Optimal Prediction Pools, Journal of Econometrics. Massively Parallel Sequential Importance Sampling with Markov Chain Renewal (with Amisano). Other updates: Appointed Theil Chair in Econometrics at Erasmus University Rotterdam, succeeding Clive Granger. 23 Amos Golan (American University) Current research: Foundations of info-metrics and entropic inference Info-metrics and extreme events; info-metrics modeling and applications Alastair Hall (University of Manchester) Current research: Estimation of the parameters of economic and statistical models based on the information in moment conditions Generalized Method of Moments and Generalized Empirical Likelihood, including moment selection and structural stability testing. Applications of GMM and GEL to financial, macroeconomic and health economic data Nathan Harshman (American University) Current research: Investigating how information, correlation, and entanglement can be used to understand interacting quantum systems and the emergent distinctions between the quantum and the classical world Applying symmetry methods to characterize invariant measures of information and entanglement in physical systems Recent publications: Observables can be tailored to change the entanglement of any pure state, Physical Review A. (This paper can be found at http://pra.aps.org/abstract/PRA/v84/i1/e012303) Atsushi Inoue (NC State University) Current research: Macroeconometrics, time series econometrics, forecasting Exploring instabilities and misspecification and their relationship with information theory George Judge (University of California - Berkeley) Recent publications: An Information Theoretic Approach to Econometrics. Cambridge University Press ((with Mittelhammer). A family of empirical likelihood functions and estimators for the binary response model, Journal of Econometrics (with Mittelhammer). 24 Large deviations theory and econometric information recovery, Handbook of Empirical Economics and Finance (with Grendar). Nicholas Kiefer (Cornell University) Current research: Bayesian methods in risk management and compensation design in banks and financial institutions Incentive compatible elicitation and representation of information Recent publications: The Bayesian Approach to Default Risk: A Guide, Rethinking Risk Measurement and Reporting: Vol II (with Jacobs). Robin Lumsdaine (American University) Current research: Exploring the relationship between financial market perceptions and reality, and the role of news and information in shaping those perceptions Testing conventional wisdoms in the inflation-linked bond market How survey design affects participant responses and subsequent inference The impact of the changing demographic landscape on the global financial markets Ilya Nemenman (Emory University) Current research Information channel capacities of molecular networks Recent publications: Information channel capacities of molecular networks Information theory and adaptation, Quantitative Biology, (Ed. M.E. Wall) Taisuki Otsu (Yale University) Current research: Application of information theoretic method for Bayesian semiparametric analysis, such as moment condition models and single index models Robustness analysis of information theoretic bootstrap inference by using breakdown point theory Large deviation analysis of information theoretic approach for statistical estimation, hypothesis testing, and model selection techniques 25 M. Hashem Pesaran (University of Cambridge) Recent publications: With Sean Holly and Takashi Yamagata, 2010 “A Spatio-temporal Model of House Prices in the US”, Journal of Econometrics, 158, 160-173 With Bahram Pesaran, (2010) “Conditional Volatility and Correlations of Weekly Returns and the VaR Analysis of 2008 Stock Market Crash”, Special Issue of Economic Modelling in honour of PAVB Swamy, edited by Stephen G. Hall, Lawrence R. Klein, George S. Tavlas and Arnold Zellner, 27, 1398-1416 With Andreas Pick and Allan Timmermann, (2011) Variable Selection, estimation and inference for multi-period forecasting problems. Journal of Econometrics, 164, 173-187. With Sean Holly and Takashi Yamagata, (2011), “Spatial and Temporal Diffusion of House Prices in the UK” Journal of Urban Economics, 69, 2-23. Weak and Strong Cross Section Dependence and Estimation of Large Panels, by Alexander Chudik, M. Hashem Pesaran and Elisa Tosetti (2011), The Econometrics Journal, 14, pp. C45-C90 With Alexander Chudik, “Infinite Dimensional VARs and Factor Models", (2011) Journal of Econometrics, 163, July 2011, 4-22. With Elisa Tosetti, “Large Panels with Common Factors and Spatial Correlations”, (2011) Journal of Econometrics, 161, pp. 182-202 Jeffrey Racine (McMaster University) Current research: Regression spline methods in categorical predictors setup Kernel smoothing and regression splines Recent publications: Additive Regression Splines with Irrelevant Categorical and Continuous Regressors, The Comprehensive R Archive Network (www.r-project.org) (with Ma). Spline Regression in the Presence of Categorical Predictors, The Comprehensive R Archive Network (www.r-project.org), (with Ma and Yang). The ‘crs’ package for R, The Comprehensive R Archive Network (www.r-project.org). Regression spline methods can be limited in their potential applicability as they are based on continuous predictors. However, in applied settings we often encounter categorical predictors such as strength of preference ("strongly prefer", "weakly prefer", "indifferent" etc.) and so forth. When confronted with categorical predictors, researchers typically break their data into subsets governed by the values of the categorical predictors (i.e. they break their data into `cells') and 26 then conduct regression using only the response and continuous predictors lying in each cell. Though consistent, this `frequency' approach can be inefficient. Recent developments in the kernel smoothing of categorical data suggest more efficient estimation approaches in such settings. These papers and the R package may be of interest to those interested in semi and nonparametric regression methods and constitute an alternative to kernel-based semi- and nonparametric approaches. Furthermore, a KLIC-based criteria exists for selecting the unknown smoothing parameters for the regression spline model (`cv.aic' - see ?crs for details). Eric Renault (Brown University) Eric Renault joined Brown University as the C.V. Starr Professor of Economics, effective July 1, 2011. His previous academic title was the Henry A. Latane Distinguished Professor of Economics at the University of North Carolina at Chapel Hill. Current research: Variance targeting for heavy tailed time series. Inference with implied probabilities Testing strength of identification in moment conditions models. Stochastic Volatility models for Option Pricing Volatility Measurement with High Frequency Data in Finance The first two topics are explicitly related to Info-Metrics by using implied probabilities provided by entropy maximization. Recent publications: “Nonparametric Instrumental Regression,” with S. Darolles,Y. Fan and J.P. Florens, Econometrica, September 2011. “Efficient Derivative Pricing by Extended Method of Moments,” with C. Gourieroux and P. Gagliardini), Econometrica , July 2011. Both papers are interested in solving ill-posed inverse problems. In the former paper, the illposedness issue is addressed by Tikhonov regularization. In the latter paper, efficient derivative prices are built by backing out the implied pricing measure through kernel smoothing and entropy maximization. Sherman Robinson (International Food Policy Research Institute) Current research: Maximum entropy estimation methods, including estimating national accounts and Social Accounting Matrices (SAMs) for developing countries, and cross-entropy estimation of GIS data at the pixel level for countries in sub-Saharan Africa 27 Richard Scheines (Carnegie Mellon University) Current research: Psychometric models and methods Causal inference The relationship between coherence, confirmation and causation Applications of causal model search applied to genetic regulatory network search Richard Smith (Cambridge University) Current research: Exploring the theory of estimation and inferential methods for econometric models specified through moment conditions Development of valid inferential methods when confronted by instruments weakly correlated with endogenous variables Development of reliable inferential methods in the moment condition context based on the bootstrap, a computationally intensive tool that has had success in other applications A major theme in my current research concerns the general theory of estimation and inferential methods for econometric models specified through moment conditions. The emphasis is on alternatives to the standard generalized method of moments, in particular, those within the generalized empirical likelihood class. Large sample bias of estimators and methods to ameliorate bias have formed one of the major strands of the research. The development of valid inferential methods when confronted by instruments weakly correlated with endogenous variables is a related theme. More recently this research has dealt with models specified by conditional moment restrictions. A current project is the development of reliable inferential methods in the moment condition context based on the bootstrap a computationally intensive tool that has had success in other applications. Michael Stutzer (University of Colorado – Boulder) Current research: Exploration of info-metric optimal hedging using futures contracts David Wolpert (NASA Ames Research Center) Current research: Self-dissimilarity and complexity, quantification of self-dissimilarity for real world data (with Macready) Predictive game theory, Bayesian approach to formulating distribution-valued concepts, entropic priors (with Bono) Recent publications: Decision Making with Imperfect Decision Makers, Springer. 28 I have been elected to be external faculty of the Santa Fe Institute. During the past year, I have conducted research on a representation of noncooperative games based on viewing players as embedded in a Bayes net. In particular, I co-led a workshop related to this at NIPS2010, called "Decision Making with Imperfect Decision Makers" (A proceedings will be published by Springer.) A paper by me on this approach can be found at the workshop website, http://www.utia.cz/NIPSProceedings I have also conducted research on analyzing the information-theoretic properties of such "net form games". In particular, the talk "Information in Games" was presented at the 2011 European Conference on Complex Systems. Ximing Wu (Texas A&M University) Current research: Nonparametric and information-theoretic methods in econometrics Data-driven information-theoretic methods of distributional and specification hypotheses Nonparametric estimation of multivariate density and copula density functions Semiparametric estimation of shape-constrained functions Multi-attribute welfare inferences Victor Yakovenko (University of Maryland) Current research: Application of methods of statistical physics to economic, financial, and social problems Exploration of probability distributions of money, wealth, income, and energy consumption per capita Victor’s webpage (where all papers on this subject are posted): http://physics.umd.edu/~yakovenk/econophysics/ 29 Summer 2011 Info-Metrics Summer Classes May 9-13, 2011 Info-Metrics: Theory and Practice Instructor: Amos Golan, American University Course Description: This class studies and practices the basics of Info-Metrics. It is a hands-on class. We study the basics of information theory and basic information processing rules across the sciences. Within that the emphasis is on information theoretic methods of estimation in econometrics/statistics in general and the information theoretic (and entropy) methods suitable for analyzing small, noisy and/or non-experimental data with minimal assumptions on the underlying process generated that data. The models we study include linear and nonlinear regressions, models with inequalities, censored, discrete choice and more. We contrast these methods with other traditional approaches. May 23-27, 2011 Spatial Econometrics: Theory and Practice Instructor: Ingmar Prucha, Professor, Department of Economics at University of Maryland College Park (Webpage: http://econweb.umd.edu/~prucha/ ) Course Description: The focus of the course is on spatial models, or more generally crosssectional interaction models. Spatial/cross-sectional interaction models are increasingly used in applied work in economics, with a focus on modeling and estimating the extent of interactions in terms of endogenous variables, co-variates and disturbances. The course discusses recently developed methods of inference for such models, and provides hands on instructions using Stata. 30 2010-2011 Institute Seminars Fall 2010 Elvira Sojli and Wing Wah Tham (Erasmus University) "The Impact of Foreign Government Investments: Sovereign Wealth Fund Investments in the U.S." Ximing Wu (Texas A&M) "Semiparametric Estimation of Production Functions with Shape Constraints" (with Robin Sickles) Ramo Gencay (Simon Fraser University) "Testing Jumps with Wavelets" Eric Renault (UNC) "Generalized Method of Moments with Tail Trimming" Petra Todd (U Penn) “Structural Estimation and Policy Evaluation in Developing Countries” Robin Lumsdaine (American U.) "The Relationship between Oil Prices and Breakeven Inflation Rates" Spring 2011 Amos Golan (American U.) "An Entropic Framework for Modelling Economies" Aman Ullah (UC, Riverside) "Estimation and Forecasting of Dynamic Conditional Covariance: A Semiparametric Multivariate Model" Hashem Pesaran (Cambridge U.) "On Identification of Bayesian DSGE Models" 31 2010-2011 Workshops & Conferences Fall 2010 Conference: September 24-25, 2010 Title: Info-Metrics: Theory and Applications Conference Objectives The objective of this Conference is to discuss and study the latest developments of Info-Metrics across the sciences. Conference Topics Conference topics include theory and methods and applications across the sciences. Examples include: Economics/Econometrics (Theory and Applications) Finance and Risk Management Social Sciences Structure 1. Paper presentations (sessions consisting of 3 papers and discussants). 2. Invited Lecturers: TBA Program Committee Anil Bera (U Illinois, Urbana-Champaign) Ariel Caticha (SUNY Albany) Ramo Gencay (Simon Fraser U) Amos Golan (American U) Alastair Hall (U. Manchester) Robin Lumsdaine (American U) Esfandiar (Essie) Maasoumi (Emory) Eric Renault (UNC) Michael J. Stutzer (U.Colorado - Boulder) 32 September 2010 Conference Program (Interactive program available on September 2010 Conference program page: https://cms.american.edu/cas/economics/info-metrics/workshop/program-2010-september.cfm ) FRIDAY SEPTEMBER 24 (Location: Mary Graydon Center 5 & 6) 9:00-10:00 AM Registration-Coffee-Refreshments 10:00-10:05 Welcoming Remarks Robert Lerman, Department of Economics, American University and Urban Institute (Chair – InfoMetrics Advisory Board) 10:05 – 10:25 Reflections on Arnold Amos Golan (American U) 10:25-11:45 AM SESSION I Info-Metrics and Finance Session Organizer – Michael J. Stutzer Chair: Michael Stutzer (U. Colorado) 1. Canonical Methods of Pricing American Style Contingent Claims, Jamie Alcock (Cambridge and U. Queensland) 2. On Esscher Transforms, Serena Tiong (U Iowa) 3. Entropy and the Market Selection Hypothesis, Alvaro Sandroni (Northwestern) 11:50 AM – 12:30 PM SESSION II Info-Metrics and Quantiles Chair: Robin Lumsdaine (American U) 1. Which Quantile is the Most Informative? Maximum Likelihood, Maximum Entropy and Quantile Regression, Anil K. Bera, A. F. Galvao Jr. (U. Iowa), G. V. Montes-Rojas and S. Y. Park 2. Incentive-Compatible Elicitation of Quantiles, Nicholas M. Kiefer (Cornell) 12:30 – 1:30 PM LUNCH (Provided) 33 1:30 – 2:40 PM SESSION III Estimation and Inference in Moment Condition Models-I Session Organizers: Alastair Hall and Eric Renault Chair: Eric Renault (UNC) 1. Robust inference for moment condition model, Taisuke Otsu (Yale) 2. Regularized Empirical Likelihood estimators, Marine Carrasco (U. Montreal) 3. Frequentist inference in weakly identified DSGE models, Atsushi Inoue (NCSU) 2:40 – 3:00 PM Coffee Break 3:00 – 4:15 PM SESSION IV Info-Metrics and Wavelets across Statistics, Economics and Finance Session Organizer: Ramo Gencay Chair: Ramo Gencay (Simon Fraser U.) 1. Discrete Wavelet Transforms Based on Zero-Phase Daubechies Filters, Donald Percival (University of Washington) 2. Vast Volatility Matrix Inference Based on High-frequency Financial Data, Yazhen Wang (UW, Madison) 3. Unit Root Tests with Wavelets, Ramo Gencay (Simon Fraser U) 4:30 – 5:45 PM SESSION V Info-Metrics and Econometrics Theory Chair: Aman Ullah (UC Riverside) 1. Bayesian Analysis of Moment Restriction Models Using Nonparametric Priors, Yuichi Kitamura (Yale) 2. Forecasting with Imprecise/Indeterminate Probabilities, Teddy Seidenfeld (Carnegie Mellon), Mark Schervish and Jay Kadane 3. Asymptotic Theory of Nonparametric Functionals with Spatial Data, Peter M. Robinson (London School of Economics) 5:50 PM Welcoming to the Reception Remarks 34 Mark Levonian (Senior Deputy Comptroller, Office of the Comptroller of the Currency) 6:00 -7:30PM Reception (Location Mary Graydon Center 3 & 4) ~~ SATURDAY SEPTEMBER 25 (Location: Ward 2) 8:00 – 9:00 AM Coffee-Refreshments 9:00 – 10:15 AM SESSION VI Estimation and Inference in Moment Condition Models – II Session Organizers: Alastair Hall and Eric Renault Chair: Alastair Hall (U. Manchester) 1. Large sample properties of the three-step Euclidean Likelihood estimators under model misspecification, Prosper Dovonon (Concordia) 2. Optimal comparison of misspecified moment restriction models, Vadim Marmer (UBC) and Taisuke Otsu (Yale) 3. Model selection test for nonnested moment inequality models, Xiaoxia Shi (UW-Madison) 10:15 – 10:30 AM Coffee Break 10:30 – 11:30 AM SESSION VII Info-Metrics, Pseudo ML and EL Chair: Esfandiar Maasoumi (Emory U.) 1. Fourth Order Pseudo Maximum Likelihood Methods, Alberto Holly, Alain Monfort and Michael Rockinger (Swiss Finance Institute, U. Lausanne, and CEPR) 2. Data Driven Empirical Likelihood Tests, Ximing Wu (Texas A & M) 3. Near Exogeneity and Weak Identification in Generalized Empirical Likelihood Estimators: Many Moment Asymptotics, Mehmet Caner (NCSU) 11:30 – 11:45 AM Coffee Break 35 11:45 – 12:45 PM SESSION VIII Info-Metrics, Games and Modeling Session Organizer: James Bono Chair: Teddy Seidenfeld (Carnegie Mellon) 1. Distribution-Valued Solution Concepts, David Wolpert (NASA and Santa Fe Inst) and James Bono (American U) 2. Identifying Strategies and Beliefs without Rationality Assumptions, James Bono (American U) and Amos Golan (American U) 3. Info-Metrics: An Entropic Framework for Modeling Economies (Tentative Title), Ariel Caticha and Amos Golan (American U) 1:00 – 2:00 PM LUNCH (Provided) 2:00 – 2:40 PM SESSION IX Info-Metrics and Risk Chair: Douglas Miller (U. Missouri) 1. The Bayesian Approach to Default Risk: A Guide, Michael Jacobs Jr. (OCC) and Nicholas M. Kiefer 2. Towards an Infometric Solution to the Risk Modeling Crisis: The Canon of Plausible Inference and the Representation of Observed Data, Alberto Solana-Ortega (CSIC, Spain) and V. Solana 2:40 – 4:00 PM SESSION X Info-Metrics - Applications Chair: Jeff Racine (McMaster U.) 1. An Information Theoretic Approach to Flexible Stochastic Frontier Models, Douglas J. Miller (U. Missouri) 2. A Latent Class Stochastic Frontier Model for Evaluating Technical Efficiency of Italian Universities: A GME Approach, Luigi Biggeri, Tiziana Laureti and Luca Secondi (National U Evaluation Committee, Italy) 3. GME Estimation with Nonlinearities and Spatial Dependence in Club Convergence Across OECD Countries, Rossella Bernardini Papalia (U. Bologna) and S. Bertarelli. 36 4. Information Theoretic Approach to Density Estimation with an Application to the U.S. Personal Income Data, Sung Y. Park (U. Illinois) and Anil K. Bera 4:00 – 4:20 PM Coffee Break 4:20 – 5:30 PM Round Table – Info-Metrics: Information Processing across the Sciences Moderator: Duncan K. Foley (New School for Social Research and Santa Fe Inst.) Ariel Caticha (SUNY Albany) Alastair Hall (U. Manchester) Yuichi Kitamura (Yale) Robin Lumsdaine (American U) Eric Renault (UNC) Peter M. Robinson (London School of Economics) Michael Stutzer (U Colorado) Aman Ullah (UC Riverside) 37 Spring 2011 Workshop: May 2, 2011 Title: Info-Metrics across the Sciences Co-chairs: Ariel Caticha (SUNY Albany) Amos Golan (AU) Sponsors: US Comptroller of the Currency Army Research Office AU College of Arts & Sciences AU Economics Department Workshop Objectives The overall objective of this workshop is to continue the study of the foundations of info-metrics and information processing across the sciences. The objective of this workshop is to continue the exploration into the basics of info-Metrics and entropic inference. In that workshop we focus on Info-Metrics in the natural sciences, study the state of information-theoretic estimation and data analysis in some areas of the natural sciences, and then discuss the implications of info-metrics in the natural sciences to the social sciences in general and to economics, econometrics, statistics and finance in particular. Workshop Topics Info-Metrics across the Sciences Information Processing across the Sciences Entropic Inference across the Sciences Program Committee Ariel Caticha (SUNY Albany) – Co-Chair Amos Golan (American U.) – Co-Chair Nicholas M. Kiefer (Cornell) Raphael D. Levine (The Hebrew U. and UCLA) Robin Lumsdaine (American U.) Confirmed Speakers/Discussants Ariel Caticha (SUNY Albany) Nathan Harshman (AU) John Harte (UC Berkeley) Raphael D. Levine (The Hebrew U. and UCLA) Ilya Nemenman (Emory U.) 38 Teddy Seidenfeld (Carnegie Mellon) Peter J. Steinbach (NIH, CIT, CMM) David Wolpert (NASA) Victor Yakovenko (U. Maryland) 39 Spring 2011 Workshop Program (Interactive program available on Spring 2011 Workshop program page: http://www.american.edu/cas/economics/info-metrics/workshop/program-2011-spring.cfm All events on May 2 at American University's Ward Building, Room 2 (Note that 6:00 Reception located in the Butler Board Room) 8:00-9:00 AM Registration-Coffee-Refreshments 9:00-9:10 AM Welcoming Remarks Cornelius M. Kerwin, President, American University 9:10-9:20 AM Info-Metrics and Workshop’s Objectives Amos Golan (American U.) 9:25-10:10 AM Session I Chair: David Wolpert (NASA) Classical Correlations, Quantum Correlations, and Magical Correlations Nathan L. Harshman (Physics; American U.) 10:15-11:15 AM Session II Chair: Robert Lerman (American U. and Urban Institute) Whose Entropy? Raphael D. Levine (Chemistry and Biochemistry, Molecular and Medical Pharmacology; The Hebrew U. and UCLA) Discussant: Amos Golan (American U.) 11:15-11:30 AM Coffee Break 11:30-12:15 PM Session III Chair: Nicholas M. Kiefer (Cornell) Inferring Multivariate Interaction Models from Empirical Data Ilya Nemenman (Physics and Biology; Emory U.) 12:15-1:15 PM Lunch (Provided) 40 1:15-2:15 PM Session IV Chair and Discussant: James Bono (American U.) An Entropic Framework for Modeling Economies Ariel Caticha (Physics; SUNY Albany) (Joint with A. Golan) 2:15-3:00 PM Session V Chair: Pieter Adriaans (U. Amsterdam) Why are the Data Too Good to be True? Teddy Seidenfeld (Philosophy and Statistics; Carnegie Mellon) 3:00-3:15 PM Coffee Break 3:15-4:00 PM Session VI Chair: Robin Lumsdaine (American U.) Inferring Lifetime Distributions from Kinetics by Maximizing Entropy Using a Bootstrapped Model Peter J. Steinbach (Center for Molecular Modeling; Center for Information Technology; NIH) 4:00-4:45 PM Session VII Chair: Ximing Wu (Texas A & M) Entropy Maximization and Distributions of Money, Income, and Energy Consumption in the Market Economy Victor Yakovenko (Physics; U. Md. College Park) 4:45-5:00 PM Coffee Break 5:00-6:15 PM Round Table – Info-Metrics: Information Processing across the Sciences Moderator: Pieter Adriaans (U. Amsterdam) William Greene (NYU) Nicholas M. Kiefer (Cornell) Robin Lumsdaine (American U.) John Rust (U Md. College Park) David Wolpert (NASA) 6:15 -7:30 PM Reception (Butler Boardroom) 41 Forthcoming Workshops & Conferences (2011-2012) October 2011 Workshop: October 3, 2011 Title: Philosophy of Information Co-Chairs: Pieter Adriaans (U. Amsterdam) Amos Golan (AU) Sponsors: US Comptroller of the Currency AU College of Arts & Sciences AU Economics Department Workshop Objectives The overall objective of this workshop is to study some of the open questions within philosophy of information. Interest in the philosophy and meaning of information goes back half a century but has rapidly increased recently with many new directions of research into the meaning, quantification and measures of information and complexity as well as a vast range of applications across the scientific spectrum. In this conference we will focus on just one aspect of the philosophy of information: the different techniques to measure information and to identify meaningful information. Various definitions (of meaningful information) have been proposed in the recent past: sophistication, effective complexity, computational depth, self-dissimilarity and facticity. At a first glance these definitions seem to cover various aspects of the same domain. If, for example, one defines meaningful information in terms of a balance between ad hoc and structural information in a dataset then this definition automatically has consequences for self dissimilarity, the effective complexity, the facticity and the computational depth of the set. A natural question is what are the exact relations between these various definitions, and whether it is possible to reduce these concepts into one (or more) central concept/s. Another interesting question is which kind of processes in nature and society creates meaningful information: evolution, game playing, stock exchange, etc. This one day conference will address these basic questions and will explore recent advances in the philosophy of information and its potential applications. 42 Program Committee Pieter Adriaans (U. Amsterdam) – Co-Chair Duncan Foley (New School for Social Research and Santa Fe Inst.) Amos Golan (American U.) – Co-Chair Esfandiar (Essie) Maasoumi (Emory) Confirmed Speakers Pieter Adriaans (U. Amsterdam) Luis Antunes (Porto U., Portugal) Ariel Caticha (SUNY Albany) J. Michael Dunn (Indiana U. Bloomington) Luciano Floridi (Oxford U. and U. Hertfordshire) Duncan Foley (New School for Social Research and Santa Fe Institute) David Oliver October 2011 Workshop page: http://www.american.edu/cas/economics/info-metrics/workshop/workshop-2011-fall.cfm 43 November 2011 Workshop: November 12, 2011 Workshop Objectives Interest in shrinkage estimators goes back half a century but has rapidly increased recently with many new directions of research that cover a vast range of applications in different disciplines. Ongoing research on information-theoretic estimation and inference methods is similarly interdisciplinary, involving information theory, engineering, mathematical statistics, econometrics and the natural sciences. Modern shrinkage estimators like adaptive Lasso and Bridge methods are penalized estimators with various penalty designs. These methods assist in model selection, oracle efficient estimation and provide substantial computational advantages. In these respects they may be viewed as methods that utilize information better than existing techniques. They have been found to be particularly helpful in large dimensional systems where shrinkage can deliver sparse estimation, sparsisity in the limit, and improved finite sample performance. The range of applications is vast and includes microeconometric models of labor supply, time series econometric applications to economic growth, aggregate cointegrated systems, and market wide financial volatility, social interaction network estimation, and gene selection in biology. This one day conference will address these various themes, the inter-connections between shrinkage estimation methodology and info-metrics, and explore recent advances in shrinkage methods and applications. Workshop Topics Shrinkage Estimators and Info-Metrics Regularization Methods and Info-Metrics Model Discovery and Info-Metrics Program Committee Mehmet Caner (NC State U) – Co-Chair Amos Golan (American U) – Co-Chair George Judge (UC Berkeley) Robin Lumsdaine (American U) Peter Phillips (Yale) – Co-Chair Eric Renault (Brown) Keynotes Speakers Andrew Barron (Yale) Victor Chernozhukov (MIT) Harrison Zhou (Yale) 44 Other Confirmed Speakers Mehmet Caner (NCSU) Marine Carrasco (Montreal) Bruce Hansen (Wisconsin) George Judge (UC Berkeley) Eric Renault (Brown) Song Song (UC Berkeley) Pascale Valery (HEC-Montreal) Liao Zhipeng (UCLA) November 2011 Workshop page: http://www.american.edu/cas/economics/info-metrics/workshop/workshop-2011-november.cfm 45 Spring 2012 Workshop: March 30-31, 2012 Title: Information and Econometrics of Networks Co-Chairs: Essie Maasoumi (Emory) Amos Golan (AU) Sponsors: US Comptroller of the Currency Journal of Applied Econometrics Workshop Objectives The two-day conference is supported by the Journal of Applied Econometrics and will be organized jointly by Professors Amos Golan of American University and Essie Maasoumi of Emory University. Social and economic networks are everywhere: from Facebook to the more complex global financial network or to networks connecting economic agents or to other complex and dynamic economic networks. The study of these networks is crucial for both academics and policy makers and presents a host of new theoretical and econometric challenges. This conference will concentrate on studying the information and econometrics of networks. The conference organizers encourage submissions of papers on any topic within this overall theme with a particular emphasis on the list below. Workshop Topics Info-Metrics and Networks Spatial Econometrics Information in Networks Factor Dependence Empirical Analysis of Social and Economic/Financial Networks Financial Networks and Risk Complex Networks Program Committee Anil Bera (U Illinois, Urbana-Champaign) Amos Golan (American U.), Co-Chair Robin Lumsdaine (American U.) Esfandiar (Essie) Maasoumi (Emory), Co-Chair Michael J. Stutzer (U. Colorado-Boulder) 46 Confirmed Speakers Marco Avellaneda (NYU) Ethan Cohen-Cole (U. Maryland) Rama Cont (Columbia) Steven N. Durlauf (U. Wisconsin, Madison) Craig Friedman (S&P) Michael Gordy (Federal Reserve Board) Jiawei Han (U. Illinois at Urban-Champaign) Peter Robinson (London School of Economics) Dan Rockmore (Dartmouth) Michael J. Stutzer (U. Colorado-Boulder) David Wolpert (NASA) Spring 2012 Workshop page: http://www.american.edu/cas/economics/info-metrics/workshop/workshop-2012-spring.cfm 47 Support the Institute! Interested in providing financial support to the Institute? We are always open to new funding sources and donations. With these resources, we hope to establish more long-term fellowships for students and junior and senior researchers. We also hope to be able to expand our classes and knowledge dissemination activities. For more information, contact Aisha Malik (malik@american.edu or 202-885-3770). 48 For More Information Visit our website: www.american.edu/info-metrics Sign up for our newsletter: send an email to info-metrics@american.edu Contact us! info-metrics@american.edu (Institute and webmaster) Professor Amos Golan, Director of Info-Metrics Institute Email: agolan@american.edu Aisha Malik, Institute Administrator Email: malik@american.edu 49