In the Quadratic Trend Model, Y_t = β₀ + β₁t

question 17

Multiple Choice

In the quadratic trend model, y_t = β₀ + β₁t ² + ε_t, which coefficient determines if the trend is going to be U-shaped or inverted U-shaped?

• A) β₀
• B) β₁
• C) β₂
• D) ε_t

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