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Economics 204 Sports and Entertainment Economics. Chapter 2. Economic Modeling. Economic Methodology Observation – What do you want to explain? Model Building - makes predictions and is a simplification of reality
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Economics 204 Sports and Entertainment Economics Chapter 2 Economic Modeling
Economic Methodology • Observation – What do you want to explain? • Model Building - makes predictions and is a simplification of reality • Identify the relevant variables and form a cause and effect relationship: Hypothesis • Functional Relationship • Pot = f(rain,…) • State assumptions • Ceteris Paribus – other things remain the same (constant) • Behavioral assumptions – Rational self-interest • State the hypothesis – “if-then” statement
Measurement and testing (Econometrics) • Regression Analysis: statistical technique to estimate a model • Qpot = f(Rain) • Graph • Pot = 10 + 5R • (9.13) (13.3) • r^2 = .89 • F- stat = 12.3 • T – stat; t>2.00 • Adding Variables • Pot = f(Rain, labor, capital, soil, etc.) • ATT = 3 + 2.5R + .05L + 1.2K + 14S) • R Squared: Closer to 1 the better • 1 shows a perfect relationship • Dummy Variables: nonnumerical variables • Sports: Conference vs Nonconference • Movie: Comedy vs Noncomedy • Music: Rock vs Nonrock • F-Test: F>3 is statistically significant
Results • Theory – if supported a few times • Law – if always supported • Economists Toolbox – interpreting data • Verbal or written • Schedule • Graphical • Mathematical • Statements • Positive – “what is” • Normative – “what should be”
Fallacies of Presentation • Load terminology to sway opinion • Criticizing the opposition • Special pleading – giving only one side • Appeal to “Authority” – make sure your endorser is an authority • Appeal to the people – “everybody else does” • Fallacy of Composition – what is good for one is good for all • Fallacy of False Cause – If b follows a, then a caused b
Sports Regression Analysis: statistical technique to estimate a model • Attendance(ATT) = f(Prices (P)) • ATT = 2000 – 383P • (9.13) (13.3) • r^2 = .89 • F- stat = 12.3 • T – stat; t>2.00 • Adding Variables • Strong correlation between economic and athletic performance • Profits = f(attendance = g(winning), Prices) • ATT = f(Prices, Population, Income, Quality) • ATT = 112 – 5.6P + .05POP + 1.2(Income) + 14(WinPct)