System Priors

System Priors PDF Author: Michal Andrle
Publisher: International Monetary Fund
ISBN: 1475548818
Category : Business & Economics
Languages : en
Pages : 26

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Book Description
This paper proposes a novel way of formulating priors for estimating economic models. System priors are priors about the model's features and behavior as a system, such as the sacrifice ratio or the maximum duration of response of inflation to a particular shock, for instance. System priors represent a very transparent and economically meaningful way of formulating priors about parameters, without the unintended consequences of independent priors about individual parameters. System priors may complement or also substitute for independent marginal priors. The new philosophy of formulating priors is motivated, explained and illustrated using a structural model for monetary policy.

System Priors

System Priors PDF Author: Michal Andrle
Publisher: International Monetary Fund
ISBN: 1475548818
Category : Business & Economics
Languages : en
Pages : 26

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Book Description
This paper proposes a novel way of formulating priors for estimating economic models. System priors are priors about the model's features and behavior as a system, such as the sacrifice ratio or the maximum duration of response of inflation to a particular shock, for instance. System priors represent a very transparent and economically meaningful way of formulating priors about parameters, without the unintended consequences of independent priors about individual parameters. System priors may complement or also substitute for independent marginal priors. The new philosophy of formulating priors is motivated, explained and illustrated using a structural model for monetary policy.

System Priors for Econometric Time Series

System Priors for Econometric Time Series PDF Author: Michal Andrle
Publisher: International Monetary Fund
ISBN: 1475555822
Category : Business & Economics
Languages : en
Pages : 18

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Book Description
The paper introduces “system priors”, their use in Bayesian analysis of econometric time series, and provides a simple and illustrative application. System priors were devised by Andrle and Benes (2013) as a tool to incorporate prior knowledge into an economic model. Unlike priors about individual parameters, system priors offer a simple and efficient way of formulating well-defined and economically-meaningful priors about high-level model properties. The generality of system priors are illustrated using an AR(2) process with a prior that most of its dynamics comes from business-cycle frequencies.

Need to Apply Adequate Controls in the Army Standard Payroll System Prior to Implementation Defense-wide, Department of Defense

Need to Apply Adequate Controls in the Army Standard Payroll System Prior to Implementation Defense-wide, Department of Defense PDF Author: United States. General Accounting Office
Publisher:
ISBN:
Category : Payrolls
Languages : en
Pages : 40

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Book Description


Defense Travel System: Overview of Prior Reported Challenges Faced by DoD in Implementation and Utilization

Defense Travel System: Overview of Prior Reported Challenges Faced by DoD in Implementation and Utilization PDF Author: McCoy Williams
Publisher: DIANE Publishing
ISBN: 1437903959
Category : Technology & Engineering
Languages : en
Pages : 18

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Book Description
In 1995, the DoD began an effort to implement a standard departmentwide travel system, the Defense Travel System (DTS). This testimony focuses on prior reporting concerning: (1) the lack of quantitative metrics to measure the extent to which DTS is actually being used; (2) weaknesses with DTS¿s requirements mgmt. and system testing; and (3) two key assumptions related to the estimated cost savings in the Sept. 2003 DTS economic analysis were not reasonable. Also highlights actions that DoD could explore to help streamline its administrative travel processes such as using a commercial database to identify unused airline tickets. Includes recommendations. Charts and tables.

Probability and Bayesian Modeling

Probability and Bayesian Modeling PDF Author: Jim Albert
Publisher: CRC Press
ISBN: 1351030132
Category : Mathematics
Languages : en
Pages : 553

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Book Description
Probability and Bayesian Modeling is an introduction to probability and Bayesian thinking for undergraduate students with a calculus background. The first part of the book provides a broad view of probability including foundations, conditional probability, discrete and continuous distributions, and joint distributions. Statistical inference is presented completely from a Bayesian perspective. The text introduces inference and prediction for a single proportion and a single mean from Normal sampling. After fundamentals of Markov Chain Monte Carlo algorithms are introduced, Bayesian inference is described for hierarchical and regression models including logistic regression. The book presents several case studies motivated by some historical Bayesian studies and the authors’ research. This text reflects modern Bayesian statistical practice. Simulation is introduced in all the probability chapters and extensively used in the Bayesian material to simulate from the posterior and predictive distributions. One chapter describes the basic tenets of Metropolis and Gibbs sampling algorithms; however several chapters introduce the fundamentals of Bayesian inference for conjugate priors to deepen understanding. Strategies for constructing prior distributions are described in situations when one has substantial prior information and for cases where one has weak prior knowledge. One chapter introduces hierarchical Bayesian modeling as a practical way of combining data from different groups. There is an extensive discussion of Bayesian regression models including the construction of informative priors, inference about functions of the parameters of interest, prediction, and model selection. The text uses JAGS (Just Another Gibbs Sampler) as a general-purpose computational method for simulating from posterior distributions for a variety of Bayesian models. An R package ProbBayes is available containing all of the book datasets and special functions for illustrating concepts from the book. A complete solutions manual is available for instructors who adopt the book in the Additional Resources section.

Smoothness Priors Analysis of Time Series

Smoothness Priors Analysis of Time Series PDF Author: Genshiro Kitagawa
Publisher: Springer Science & Business Media
ISBN: 1461207614
Category : Mathematics
Languages : en
Pages : 265

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Book Description
Smoothness Priors Analysis of Time Series addresses some of the problems of modeling stationary and nonstationary time series primarily from a Bayesian stochastic regression "smoothness priors" state space point of view. Prior distributions on model coefficients are parametrized by hyperparameters. Maximizing the likelihood of a small number of hyperparameters permits the robust modeling of a time series with relatively complex structure and a very large number of implicitly inferred parameters. The critical statistical ideas in smoothness priors are the likelihood of the Bayesian model and the use of likelihood as a measure of the goodness of fit of the model. The emphasis is on a general state space approach in which the recursive conditional distributions for prediction, filtering, and smoothing are realized using a variety of nonstandard methods including numerical integration, a Gaussian mixture distribution-two filter smoothing formula, and a Monte Carlo "particle-path tracing" method in which the distributions are approximated by many realizations. The methods are applicable for modeling time series with complex structures.

Principles of Uncertainty

Principles of Uncertainty PDF Author: Joseph B. Kadane
Publisher: CRC Press
ISBN: 1351683365
Category : Mathematics
Languages : en
Pages : 525

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Book Description
Praise for the first edition: Principles of Uncertainty is a profound and mesmerising book on the foundations and principles of subjectivist or behaviouristic Bayesian analysis. ... the book is a pleasure to read. And highly recommended for teaching as it can be used at many different levels. ... A must-read for sure!—Christian Robert, CHANCE It's a lovely book, one that I hope will be widely adopted as a course textbook. —Michael Jordan, University of California, Berkeley, USA Like the prize-winning first edition, Principles of Uncertainty, Second Edition is an accessible, comprehensive text on the theory of Bayesian Statistics written in an appealing, inviting style, and packed with interesting examples. It presents an introduction to the subjective Bayesian approach which has played a pivotal role in game theory, economics, and the recent boom in Markov Chain Monte Carlo methods. This new edition has been updated throughout and features new material on Nonparametric Bayesian Methods, the Dirichlet distribution, a simple proof of the central limit theorem, and new problems. Key Features: First edition won the 2011 DeGroot Prize Well-written introduction to theory of Bayesian statistics Each of the introductory chapters begins by introducing one new concept or assumption Uses "just-in-time mathematics"—the introduction to mathematical ideas just before they are applied

Web Information Systems Engineering -- WISE 2013

Web Information Systems Engineering -- WISE 2013 PDF Author: Xuemin Lin
Publisher: Springer
ISBN: 3642412300
Category : Computers
Languages : en
Pages : 550

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Book Description
This book constitutes the proceedings of the 14th International Conference on Web Information Systems Engineering, WISE 2013, held in Nanjing, China, in October 2013. The 48 full papers, 29 short papers, and 10 demo and 5 challenge papers, presented in the two-volume proceedings LNCS 8180 and 8181, were carefully reviewed and selected from 198 submissions. They are organized in topical sections named: Web mining; Web recommendation; Web services; data engineering and database; semi-structured data and modeling; Web data integration and hidden Web; challenge; social Web; information extraction and multilingual management; networks, graphs and Web-based business processes; event processing, Web monitoring and management; and innovative techniques and creations.

A Guide to Serial Publications Founded Prior to 1918 and Now Or Recently Current in Boston, Cambridge, and Vicinity

A Guide to Serial Publications Founded Prior to 1918 and Now Or Recently Current in Boston, Cambridge, and Vicinity PDF Author: Thomas Johnston Homer
Publisher:
ISBN:
Category : Boston (Mass.)
Languages : en
Pages : 818

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Book Description


Data Analysis Using Regression and Multilevel/Hierarchical Models

Data Analysis Using Regression and Multilevel/Hierarchical Models PDF Author: Andrew Gelman
Publisher: Cambridge University Press
ISBN: 9780521686891
Category : Mathematics
Languages : en
Pages : 654

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Book Description
This book, first published in 2007, is for the applied researcher performing data analysis using linear and nonlinear regression and multilevel models.