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Walter Enders is Professor and Lee Bidgood Chair of Economics and Finance at the University of Alabama. He received his doctorate in economics from Columbia University. His current research focuses on the development and application of time-series models to areas in economics and finance, including documenting the cyclic and shifting nature of terrorist attacks in response to defensive counteractions. Dr. Enders has published numerous research articles in such journals as the Review of Economics and Statistics, Quarterly Journal of Economics, and the Journal of International Economics. He has also published articles in the American Economic Review, the Journal of Business and Economic Statistics, and the American Political Science Review.
Preface | p. v |
About The Author | p. viii |
Difference Equations | p. 1 |
Introduction | p. 1 |
Time-Series Models | p. 1 |
Difference Equations and their Solutions | p. 7 |
Solution by Iteration | p. 10 |
An Alternative Solution Methodology | p. 14 |
The Cobweb Model | p. 18 |
Solving Homogeneous Difference Equations | p. 22 |
Particular Solutions for Deterministic Processes | p. 31 |
The Method of Undetermined Coefficients | p. 33 |
Lag Operators | p. 39 |
Summary | p. 42 |
Questions and Exercises | p. 43 |
Endnotes | p. 45 |
Imaginary Roots and de Moivre's Theorem | p. 45 |
Characteristic Roots in Higher-Order Equations | p. 47 |
Stationary Time-Series Models | p. 49 |
Stochastic Difference Equation Models | p. 49 |
Arma Models | p. 52 |
Stationarity | p. 53 |
Stationarity Restrictions for an Arma (p, q) Model | p. 57 |
The Autocorrelation Function | p. 62 |
The Partial Autocorrelation Function | p. 65 |
Sample Autocorrelations of Stationary Series | p. 69 |
Box-Jenkins Model Selection | p. 78 |
Properties of Forecasts | p. 81 |
A Model of the Interest Rate Spread | p. 89 |
Seasonality | p. 97 |
Parameter Instability and Structural Change | p. 103 |
Summary and Conclusions | p. 110 |
Questions and Exercises | p. 110 |
Endnotes | p. 116 |
Estimation of an MA (1) Process | p. 116 |
Model Selection Criteria | p. 118 |
Modeling Volatility | p. 121 |
Economic Time Series: The Stylized Facts | p. 121 |
Arch Processes | p. 125 |
Arch and Garch Estimates of Inflation | p. 132 |
Two Examples of Garch Models | p. 136 |
A Garch Model of Risk | p. 141 |
The Arch-M Model | p. 143 |
Additional Properties of Garch Processes | p. 146 |
Maximum-Likelihood Estimation of Garch Models | p. 152 |
Other Models of Conditional Variance | p. 154 |
Estimating the Nyse International 100 Index | p. 158 |
Multivariate Garch | p. 165 |
Summary and Conclusions | p. 170 |
Questions and Exercises | p. 172 |
Endnotes | p. 176 |
Multivariate Garch Models | p. 176 |
Models With Trends | p. 181 |
Deterministic and Stochastic Trends | p. 181 |
Removing the Trend | p. 189 |
Unit Roots and Regression Residuals | p. 195 |
The Monte Carlo Method | p. 200 |
Dickey-Fuller Tests | p. 206 |
Examples of the Dickey-Fuller Test | p. 209 |
Extensions of the Dickey-Fuller Test | p. 215 |
Structural Change | p. 227 |
Power and the Deterministic Regressors | p. 234 |
Tests with More Power | p. 239 |
Panel Unit Root Tests | p. 244 |
Trends and Univariate Decompositions | p. 247 |
Summary and Conclusions | p. 257 |
Questions and Exercises | p. 258 |
Endnotes | p. 262 |
The Bootstrap | p. 263 |
Determination of the Deterministic Regressors | p. 267 |
Multiequation Time-Series Models | p. 272 |
Intervention Analysis | p. 273 |
Transfer Function Models | p. 280 |
Estimating a Transfer Function | p. 290 |
Limits to Structural Multivariate Estimation | p. 294 |
Introduction to Var Analysis | p. 297 |
Estimation and Identification | p. 303 |
The Impulse Response Function | p. 307 |
Testing Hypotheses | p. 315 |
Example of a Simple Var: Terrorism and Tourism in Spain | p. 321 |
Structural Vars | p. 325 |
Examples of Structural Decompositions | p. 329 |
The Blanchard-Quah Decomposition | p. 338 |
Decomposing Real and Nominal Exchange Rates: An Example | p. 344 |
Summary and Conclusions | p. 347 |
Questions and Exercises | p. 349 |
Endnotes | p. 354 |
Cointegration and Error-Correction Models | p. 356 |
Linear Combinations of Integrated Variables | p. 357 |
Cointegration and Common Trends | p. 363 |
Cointegration and Error Correction | p. 365 |
Testing for Cointegration: The Engle-Granger Methodology | p. 373 |
Illustrating the Engle-Granger Methodology | p. 377 |
Cointegration and Purchasing Power Parity | p. 3827 |
Characteristic Roots, Rank, and Cointegration | p. 385 |
Hypothesis Testing | p. 393 |
Illustrating the Johansen Methodology | p. 401 |
Error-Correction and ADL Tests | p. 405 |
Comparing the Three Methods | p. 409 |
Summary and Conclusions | p. 412 |
Questions and Exercises | p. 413 |
Endnotes | p. 418 |
Characteristic Roots, Stability, and Rank | p. 419 |
Inference on a Cointegrating Vector | p. 425 |
Nonlinear Time-Series Models | p. 428 |
Linear Versus Nonlinear Adjustment | p. 428 |
Simple Extensions of the ARMA Model | p. 431 |
Pretesting in Nonlinearity | p. 434 |
Threshold Autoregressive Models | p. 439 |
Extensions of the Tar Model | p. 445 |
Three Threshold Models | p. 451 |
Smooth-Transition Models | p. 457 |
Other Regime Switching Models | p. 462 |
Estimates of Star Models | p. 466 |
Generalized Impulse Responses and Forecasting | p. 470 |
Unit Roots and Nonlinearity | p. 477 |
Summary and Conclusions | p. 482 |
Questions and Exercises | p. 483 |
Endnotes | p. 486 |
Statistical Tables | p. 488 |
Empirical Cumulative Distribution of the ? | p. 488 |
Empirical Distribution of ø | p. 489 |
Critical Values for the Engle-Granger Cointegration Test | p. 490 |
Residual-Based Cointegration Test with I(1) and I(2) Variables | p. 491 |
Empirical Distributions of the $max and $trace Statistics | p. 492 |
Critical Values for ß1 = 0 in the Error-correction Model | p. 493 |
Critical Values for Threshold Unit Roots | p. 494 |
References | p. 495 |
Subject Index | p. 503 |
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