Statistical Preliminary 1. Measure of central tendency and dispersion Mean of a group of number is the average value of these numbers. Median is the number that is in the middle when you order these numbers in ascending order. It is probably immediate to you that the order doesn’t have to be ascending. A tricky question is what the median is when the total number of the numbers is even. In that case‚ you just take the average of the two numbers that are in the middle. For example‚ suppose
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Martin‚ V. L. Are all crisis alike? Working Paper‚ 2008. Assessed at: http://dungey.bigpondhosting.com [7] Gonzalo‚ J. Five alternative methods of estimating long-run equilibrium relationships”‚ Journal of Econometrics‚ 1994‚ 60: 203-33. [8] Granger‚ C. W. Investigating causal relations by econometric and cross-sectional method‚ Econometrica‚ 1969‚ 37(3)‚ 424-438. [9] He‚ D.‚ Cheung‚ L. and Chang‚ J. Sense and nonsense on Asia’s export dependency and decoupling thesis. Working Paper 03‚ Hong Kong Monetary
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Practice Questions and Past Exam Questions Question 1: Short answer questions. (a). It is widely accepted that empirical distributions of returns of various financial assets exhibit leptokurtosis. Explain what leptokurtosis is and how one can verify whether a certain empirical distribution is leptokurtic or not. (b). Fama-French three factor model attempts to explain the excess return on a certain asset in terms of three explanatory variables. This model includes two additional explanatory variables
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140 220 155 240 150 260 The theory suggests that consumption (Y) depends on income (X); hence‚ econometric model may be specified‚ as follows. Y = f(X) (General form) (1) Or Y = β0 + β1X + e (Linear form) (2) The above stated regression analysis model contains two variables (one independent variable X and one dependent variable
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STUDY OF PROFITABILITY OF A LOGISTICS COMPANY USING ECONOMETRICS TOOLS Executive summary This study examines the impact of three factors‚ namely Sales‚ Fixed assets and Interest paid on the profitability of a logistics company. Econometric tool of multiple linear regression model was used for analyzing the impact of above factors on profitability of a major logistics company GATI Limited. Based on the financial data of last 10 years 2000-2009 the regression analysis has revealed that profitability
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40 JOURNAL FOR ECONOMIC EDUCATORS‚ 10(1)‚ SUMMER 2010 UNDERGRADUATE RESEARCH Public Transportation Ridership Levels Christopher R. Swimmer and Christopher C. Klein 1 Abstract This article uses linear regression analysis to examine the determinants of public transportation ridership in over 100 U. S. cities in 2007. The primary determinant of ridership appears to be availability of public transportation service. In fact‚ the relationship is nearly one to one: a 1% increase in availability is
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within the specified areas. It must be noted at this point‚ that the true population in any given situation is never really known. As such samples are usually collected and estimated using econometric methods. The results are then used to infer or make judgments about the true population. Basically‚ econometrics is based on economic theory‚ mathematical economics and statistics. Where the relationships among variables are measured using numerical values and estimates are then interpreted. This
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Developments in the study of cointegrated economic variables. Oxford Bulletin of Economics and Statistics 48: 213-228. Gultekin‚ G. H. (1983)‚ Internationally diversified portfolios: Welfare gains and capital flows. Halicioglue‚ D. F. (2007)‚ Econometric modeling with cointegrated variables: An overview. Hamao‚ Y.‚ (1988)‚ An empirical examination of the arbitrage pricing theory: using Japanese data‚ Japan and the World Economy‚ vol 1‚ pp.45-61 Johansen S Vector Autoregressive Models”‚ Econometrica
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ECONOMETRICS: PS5 PROBLEM SET 5: ESTIMATION PROBLEMS 1 We have the following variables: Y: Food expenditure in USA. X: Family income. P: Price index. Two different regressions are estimated with the following estimation results (standard errors are in brackets): Coefficient for Regression X Y/P Y / X; P 0.112 (0.003) Coefficient for P 2.462 (0.407) -0.739 (0.114) Determination coefficient 0.614 0.978 Assuming that the true equation for Y includes both X and
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2013/3/31 Introduction: The Nature and Purpose of Econometrics Continuous and Discrete Data What is Econometrics? Literal meaning is “measurement in economics”. Definition of financial econometrics: The application of statistical and mathematical techniques to problems in finance and accounting. Continuous data can take on any value and are not confined to take specific numbers. Discrete data can only take on certain values‚ which are usually integers Types of Data Dummy
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