We have,
Y = B0 + B1X1 + B2X2 + u
Thus, dY/dX1 = B1
Thus, if X1 is increased by 8 units and X2 is unchanged, the expected change in Y = 8*B2 units.
A multiple regression includes two regressors: Y = R + B, X, + B x +...
A multiple regression includes two regressors: Use the tool palette to the right to answer the following questions. What is the expected change in Yif X, increases by 10 units and X2 is unchanged? The expected change in Yif X, increases by 10 units and X2 is unchanged is(Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g, a subscript can be created with the_character)
Roger's utility function is Cobb-Douglas, U = 80.67 20.33, his income is Y, the price of B is PB, and the price of Z is pz. Derive his demand curves. Roger's demand functions are B= and Z= . (Enter any numbers rounded to two decimal places. Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the_ character.)
David consumes two things: gasoline (q1) and bread (q2). David's utility function is (1. 2)50,0 80202 Let the price of gasoline be py, the price of bread be p2, and income be Y. Derive David's demand curve for gasoline. David's demand for gasoline is q1 (Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the_ character.)
For the utility function U(x, z) x+z derive expressions for the optimal levels of good x and good z as functions of the price of good x, py, the price of good z, p7, and income, Y. For simplicity, assume that the price of good z is normalized to be one: PZ 1 1 In your answer, use 1 for "p2" and the relationship o 1- The optimal value of good z is (Properly format your expression using the tools...
Consider the following binary variable version of the fixed effects model. Each regressor Dj is a binary variable that equals 1 when i -j and 0 otherwise. Note that the binary variable D1, for the first group is arbitrarily omitted. Use the regression in the equation above and the tool palette to the right to answer the following questions. What is the slope and intercept for entity 1 in time period 2? The slope of entity 1 in time period...
Rui's utility function is U=X + 100XZ + Z. Let the price of good X be Px, the price of good Z be normalized to $1.00, and U be her level of well-being. What is her expenditure function? Rui's expenditure function (E) is E = (Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the character.)
David consumes two things: gasoline (91) and bread (92). David's utility function is U(91, 92) = 109,0-220.8 Let the price of gasoline be pq, the price of bread be P2, and income be Y. Derive David's demand curve for gasoline. David's demand for gasoline is 9,= (Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the_ character.) With recent increases in the price of gasoline,...
Derive Roger's Engel curve for B. Recall that Roger's utility function is Cobb-Douglas, U=B0.20 20.80 his income is Y, the price of B is PB, and the price of Z is pz. Roger's Engel curve for B is Y= . (Round any numerical coefficient to one decimal place and properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the character.)
David consumes two things: gasoline (91) and bread (92). David's utility function is U(41, 92) = 909, 0.5920.5 Let the price of gasoline be py, the price of bread be P2, and income be Y. Derive David's demand curve for gasoline. David's demand for gasoline is qy = . (Properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the character.)
Derive Roger's Engel curve Derive Roger's Engel curve for B. Recall that Roger's utility function is Cobb-Douglas, U = 30.75 0.25 his income is Y, the price of B is PB, and the price of Z is pz Roger's Engel curve for Bis Y = (Round any numerical coefficient to one decimal place and properly format your expression using the tools in the palette. Hover over tools to see keyboard shortcuts. E.g., a subscript can be created with the character.)