8/19/2019 Intpretations of Models

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Log log

logY = C + 3.3 log X

si incremento en 1% a X, esperamos que Y aumentara en un 3.3 %

level level

Y = C + 1025 X

i incremento X en 1 uni!a!, espero que Y cre"ca en 1025 uni!a!es

Log level

logY = C + 0.33 X

si X aumenta en 1 uni!a!, espero que Y aumente en 33%

level log

Y = C + #025 log X

i $ aumenta en 1%, se espera que Y cre"ca en #0.25 uni!a!es = #025 100

8/19/2019 Intpretations of Models

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Y and X -- a one unit increase in X would lead to a β

increase/decrease in Y

Log Y and Log X -- a 1% increase in X would lead to a β

% increase/decrease in Y

Log Y and X -- a one unit increase in X would lead to a β&100

% increase/decrease in Y

Y and Log X -- a 1% increase in X would lead to a β /100

increase/decrease in Y