Showing posts with label forecasting. Show all posts
Showing posts with label forecasting. Show all posts

11/11/2011

Introduction to Time Series Modeling (Chapman & Hall/CRC Monographs on Statistics & Applied Probability) Review

Introduction to Time Series Modeling (Chapman and Hall/CRC Monographs on Statistics and Applied Probability)
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Here is the table of contents from the CRC site.
Introduction and Preparatory Analysis
Time Series Data
Classification of Time Series
Objectives of Time Series Analysis
Preprocessing of Time Series
Organization of This Book
The Covariance Function
The Distribution of Time Series and Stationarity
The Autocovariance Function of Stationary Time Series
Estimation of the Autocovariance Function
Multivariate Time Series and Scatterplots
Cross-Covariance Function and Cross-Correlation Function
The Power Spectrum and the Periodogram
The Power Spectrum
The Periodogram
Averaging and Smoothing of the Periodogram
Computational Method of Periodogram
Computation of the Periodogram by Fast Fourier Transform
Statistical Modeling
Probability Distributions and Statistical Models
K-L Information and the Entropy Maximization Principle
Estimation of the K-L Information and Log-Likelihood
Estimation of Parameters by the Maximum Likelihood Method
Akaike Information Criterion (AIC)
Transformation of Data
The Least Squares Method
Regression Models and the Least Squares Method
Householder Transformation Method
Selection of Order by AIC
Addition of Data and Successive Householder Reduction
Variable Selection by AIC
Analysis of Time Series Using ARMA Models
ARMA Model
The Impulse Response Function
The Autocovariance Function
The Relation between AR Coefficients and the PARCOR
The Power Spectrum of the ARMA Process
The Characteristic Equation
The Multivariate AR Model
Estimation of an AR Model
Fitting an AR Model
Yule-Walker Method and Levinson's Algorithm
Estimation of an AR Model by the Least Squares Method
Estimation of an AR Model by the PARCOR Method
Large Sample Distribution of the Estimates
Yule-Walker Method for MAR Model
Least Squares Method for MAR Model
The Locally Stationary AR Model
Locally Stationary AR Model
Automatic Partitioning of the Time Interval
Precise Estimation of a Change Point
Analysis of Time Series with a State-Space Model
The State-Space Model
State Estimation via the Kalman Filter
Smoothing Algorithms
Increasing Horizon Prediction of the State
Prediction of Time Series
Likelihood Computation and Parameter Estimation for a Time Series Model
Interpolation of Missing Observations
Estimation of the ARMA Model
State-Space Representation of the ARMA Model
Initial State of an ARMA Model
Maximum Likelihood Estimate of an ARMA Model
Initial Estimates of Parameters
Estimation of Trends
The Polynomial Trend Model
Trend Component Model--Model for Probabilistic Structural Changes
Trend Model
The Seasonal Adjustment Model
Seasonal Component Model
Standard Seasonal Adjustment Model
Decomposition Including an AR Component
Decomposition Including a Trading-Day Effect
Time-Varying Coefficient AR Model
Time-Varying Variance Model
Time-Varying Coefficient AR Model
Estimation of the Time-Varying Spectrum
The Assumption on System Noise for the Time-Varying Coefficient AR Model
Abrupt Changes of Coefficients
Non-Gaussian State-Space Model
Necessity of Non-Gaussian Models
Non-Gaussian State-Space Models and State Estimation
Numerical Computation of the State Estimation Formula
Non-Gaussian Trend Model
A Time-Varying Variance Model
Applications of Non-Gaussian State-Space Model
The Sequential Monte Carlo Filter
The Nonlinear Non-Gaussian State-Space Model and Approximations of Distributions
Monte Carlo Filter
Monte Carlo Smoothing Method
Nonlinear Smoothing
Simulation
Generation of Uniform Random Numbers
Generation of Gaussian White Noise
Simulation Using a State-Space Model
Simulation with Non-Gaussian Model
Appendix A: Algorithms for Nonlinear Optimization
Appendix B: Derivation of Levinson's Algorithm
Appendix C: Derivation of the Kalman Filter and Smoother Algorithms
Appendix D: Algorithm for the Monte Carlo Filter
Bibliography

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In time series modeling, the behavior of a certain phenomenon is expressed in relation to the past values of itself and other covariates. Since many important phenomena in statistical analysis are actually time series and the identification of conditional distribution of the phenomenon is an essential part of the statistical modeling, it is very important and useful to learn fundamental methods of time series modeling. Illustrating how to build models for time series using basic methods, Introduction to Time Series Modeling covers numerous time series models and the various tools for handling them.The book employs the state-space model as a generic tool for time series modeling and presents convenient recursive filtering and smoothing methods, including the Kalman filter, the non-Gaussian filter, and the sequential Monte Carlo filter, for the state-space models. Taking a unified approach to model evaluation based on the entropy maximization principle advocated by Dr. Akaike, the author derives various methods of parameter estimation, such as the least squares method, the maximum likelihood method, recursive estimation for state-space models, and model selection by the Akaike information criterion (AIC). Along with simulation methods, he also covers standard stationary time series models, such as AR and ARMA models, as well as nonstationary time series models, including the locally stationary AR model, the trend model, the seasonal adjustment model, and the time-varying coefficient AR model.With a focus on the description, modeling, prediction, and signal extraction of times series, this book provides basic tools for analyzing time series that arise in real-world problems. It encourages readers to build models for their own real-life problems.

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8/16/2011

Introduction to Management Science: A Modeling and Case Studies Approach with Spreadsheets Review

Introduction to Management Science: A Modeling and Case Studies Approach with Spreadsheets
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Factors that contributed to a low rating for this book include, a lack of user-friendliness and lengthy case studies. The blue colored wordings (black would be better) can be quite glaring under the lights making it not smoothing to the eyes.
Furthermore, it uses long case studies which could have been shortened by cutting down on the introductions to the companies it made reference to. More focus should be given to concepts at the earlier stage of every section, instead of making the reader running through a lengthy introduction before focusing on the concepts.
Important concepts could also have been left out. One example would be the omission of 'Reduced Cost' under the chapters of Linear Programming and Integer Programming.
However, this book is certainly catered to users of MS Excel. It has in-depth discussions of Excel in areas of Management Science

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These authors are well known for their best selling text, Introduction to Operations Research.This new text is also headed for great success, as it offers a unique case-study approach, and it integrates the use of Excel.Each chapter includes a case study which is meant to show the students a real and interesting application of the topics addressed in that chapter...--This text refers to an out of print or unavailable edition of this title.

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8/02/2011

Next Generation Excel: Modeling in Excel for Analysts and MBAs (Wiley Finance) Review

Next Generation Excel: Modeling in Excel for Analysts and MBAs (Wiley Finance)
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I heartily recommend this book to anyone that uses Excel on a daily basis for business analysis or for MBA students. Early in the introduction, Dr. Gottlieb promises that if you use Excel for 10 hours a week or more, this book will save you hundreds of hours per year. He delivers!
You don't need to build an excel spreadsheet to calculate that this book is worth many times its cover price to users of excel. Even if you are a "power user" you will quiclky find tips that will make you more efficient.
I was fortunate enough to take an Excel class from Dr. Gottlieb a few years ago during the "crash math course" week while getting an MBA at Columbia University. I don't want to offend any of my esteemed professors, but those few hours with Dr. Gottlieb were probably more useful than several of my semester-long courses to me. I currently use Excel for 3-4 hours per day to analyze stocks at my hedge fund and his tips have saved me hours and helped to make my graphical representation of data look top-notch.
This book is not a basic "how-to" or "for dummies" book on Excel. It is the perfect book for you if you use Excel frequently, but are frustrated that you have to perform certain repetitive keystrokes or clicks to get it do what you want. Perhaps you want your charts to look better. Maybe you didn't even know that you could have custom lists built in, for example, instead of manually entering FQ01, FQ02, etc. You can add trend lines to graphs; you can format parts of graphs differently than other parts. You can name cells, groups of cells to make your work easier.
Dr. Gottlieb exposes the many keystroke shortcuts that can make your daily grind with Excel less laborious. His book is laid out in a very concise, neat organization. I think the best way to really benefit from it is to power through entire sections that apply to your work and try his examples. He provides some problems at the end of each chapter (he is in academia, after all) but mercifully; he provides the answers, too!
This book is only about 280 pages long, but don't let that fool you, if you compare it to some other Excel books with 800 pages. He has more time-saving information in it than books 2 or 3 times as long. The beauty of his book is everything he shows is something an analyst using Excel in the real world actually uses it for. He is not just running through every menu, detailing every useless capability of Excel, like the other books.
This is the key advantage to Dr. Gottlieb's book. He has a list of over 50,000 people that he sends his "tip of the month" to and they (like me) are not shy about emailing him questions. This gives him keen insight into what real Excel jockeys are interested in, and he addresses those issues in this book. Get it today and you will discover many things that Excel can do for you, in a much easier way than you are using it today!

Click Here to see more reviews about: Next Generation Excel: Modeling in Excel for Analysts and MBAs (Wiley Finance)

Dr. Isaac Gottlieb personally trained 35 of our top analysts and finance professionals in a customized advanced Excel seminar. Many of the tools covered in this book were part of this well-received training. For the past five years, Isaac's monthly Excel-Tip-Of-The-Month newsletter has been a personal favorite of mine. In an age where email overload is common, I always look forward to his email and many of my associates and team members around the world are part of his over 50,000 monthly recipients. This compilation is a must-have for any finance professional who wants to be a better business partner and truly add value in a more efficient manner!
Anthony N. Caspio, CMAVice President - FinanceSealed Air Corporation
Excel has been one of the most powerful applications of recent times, but most users, unfortunately, only scratch its surface. Prof. Gottlieb's book leverages his years of Excel workshops in the US, Europe and Asia, and he unleashes the tremendous potential and power of Excel. His to-the-point explanations and his innovative screenshots bring Excel alive to readers who may just have a working knowledge of the software. This amazing volume is an application-oriented book for Excel users who want answers fast, and who need to maximize the application's awesome potential.
Prof. Farrokh Langdana, Ph.D.Director, Rutgers Executive MBAProfessor, Rutgers Business School
If I should thank Microsoft for inventing Excel, then I would like to thank Dr. Isaac Gottlieb more for teaching me how to use it to solve the real problems in my real work. Keep going Isaac!
Wu HaowenDirector of International ProgramsSchool of Management, Dalian University of Technology
Isaac Gottlieb's Next Generation Excel is an invaluable resource. The fruit of many years of teaching Excel to university business students, Gottlieb's book covers the topics that the Excel user needs to become more efficient and sophisticated. It is easy to read and follow. A wonderful book!
Simon BenningaProfessor of Finance, Faculty of Management, Tel Aviv UniversityAuthor of Principles of Finance with Excel
As an avid user of Excel, several years ago I came across Isaac's Excel-Tip-Of-The-Month newsletter. I quickly realized that Isaac exploits Excel to the "next usability level." Like his monthly newsletters, Isaac has composed a book that is clear and concise similarly reflecting his teaching methods. This book helps intermediate users to rapidly acquire Excel-pro skills, while allowing advanced users to grasp concepts in one single pass-through. Furthermore, Isaac takes day-to-day challenges and provides elegant ease of use solutions.
Moshe CastielManager, IT – Technology & OperationsTIAA-CREF
Next Generation Excel presents an interesting perspective on the resourcefulness of Microsoft Excel like never before. This book is an excellent and a much-needed resource to MBA students, educators and Excel enthusiasts. In reviewing this book, the principal criteria included content, organization and Excel add-on files. The book is neatly organized into sections; starting with basic Excel tools and functions, commonly used statistical tools, what-if-analysis and then moving on to advanced data features, solver-add ins and various other ToolPaks, nicely complemented with the Excel snapshots to provide a user friendly experience. As a result, one can jump directly to the relevant sections and use the Excel files provided to get a more hands-on experience. The right mix of theory and practice, is the unique selling point (USP) of this book!
Anirudha "Andy" Vaidya, MBACEOAVS System

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8/01/2011

Corporate Valuation Modeling: A Step-by-Step Guide (Wiley Finance) Review

Corporate Valuation Modeling: A Step-by-Step Guide (Wiley Finance)
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There are many different variations on the basic DCF valuation model. Every bank has one, every business school has one, and everyone modifies it for their own purposes.
Keith's book offers some distinct advantages: (1) It actually walks you through the steps of building the model, instead of simply typing the inputs into one. This will ensure you understand it, but it might take some time to build it. (The full model is included for people who want to skip the typing). (2) Secondly, it is a "full blown" model and not a simplified version of one. While the first is common, and the second is common, the combination is (in my experience) uncommon.
More interestingly, (3) this model is more advanced than most of the others out there. The primary improvement is he has more "checks and balances" thrown in. The model has little checks that make sure cash ties through, that the extra cash pays off the debt, that capital expenditures are accounted for and that their depreciation pours through the income statement etc. This is invaluable. It does make it complicated, and sometimes I had circular references that were hard to fix, but this just forced me to deal with what was really going on in the model.
All in all, nicely done.

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A critical guide to corporate valuation modeling
Valuation is at the heart of everything that Wall Street does. Every day, millions of transactions to purchase or sell companies take place based on prices created by the activities of all market participants. In this book, author Keith Allman provides you with a core model to value companies.
Corporate Valuation Modeling takes you step-by-step through the process of creating a powerful corporate valuation model. Each chapter skillfully discusses the theory of the concept, followed by Model Builder instructions that inform you of every step necessary to create the template model. Many chapters also include a validation section that shows techniques and implementations that you can employ to make sure the model is working properly.
Walks you through the full process of constructing a fully dynamic corporate valuation model
A Tool Box section at the end of each chapter assists readers who may be less skilled in Excel techniques and functions

Complete with a companion CD-ROM that contains constructed models, this book is an essential guide to understanding the intricacies of corporate valuation modeling.
Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

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