Question

i. Y_i = b_0^2 + (1/b_0) * X_1i + u_i ii. ln(Y_i) = b_0 + b_1...

i. Y_i = b_0^2 + (1/b_0) * X_1i + u_i
ii. ln(Y_i) = b_0 + b_1 * X_1i + b_2 * X_2i + u_i
iii. Y_i = b_0 * X_1i^b_1 * X_2i^b_2 + u_i
iv. ln(Y_i) = b_0 + b_1 * X_1i + b_2 * X_1i^2 + u_i
v. Y_i = b_0 * X_1i^b_1 * X_2i^b_2 * exp(u_i)

Note that _ indicates a subscript, ^ indicates a superscript (power), ln indicates the natural logarithm, and exp denotes the exponential function. You should interpret b as beta.

(c) Which model(s) can be estimated by nonlinear least squares but not OLS?

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