(Requires Appendix Material) the Relationship Between the TSLS Slope and the Corresponding

question 36

Multiple Choice

(requires Appendix material) The relationship between the TSLS slope and the corresponding population parameter is:

• A) \(\left( \hat { \beta } _ { 1 } ^ { \text {TSLS } } - \beta _ { 1 } \right) = \frac { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) u _ { i } } { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) \left( X _ { i } - \bar { X } \right) } .\)
• B) \(\left( \hat { \beta } _ { 1 } ^ { \text {TSLS } } - \beta _ { 1 } \right) = \frac { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) } { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) \left( X _ { i } - \bar { X } \right) } .\)
• C) \(\left( \hat { \beta } _ { 1 } ^ { T S L S } - \beta _ { 1 } \right) = \frac { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) u _ { i } } { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) ^ { 2 } } .\)
• D) \(\left( \hat { \beta } _ { 1 } ^ { \text {TSLS } } - \beta _ { 1 } \right) = \frac { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( X _ { i } - \bar { X } \right) u _ { i } } { \frac { 1 } { n } \sum _ { i = 1 } ^ { n } \left( Z _ { i } - \bar { Z } \right) \left( X _ { i } - \bar { X } \right) }\)

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