(Requires Chapter 8)When Using Panel Data and in the Presence

question 36

Multiple Choice

(Requires Chapter 8) When using panel data and in the presence of endogenous regressors

• A)the TSLS does not exist.
• B)you do not have to worry about the validity of instruments, since there are so many fixed effects.
• C)the OLS estimator is consistent.
• D)application of the TSLS estimator is straightforward if you use two time periods and difference the data.

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Definitions:

Conformers

Different spatial arrangements of atoms in a molecule that can be converted into one another by rotation around single bonds.

Butane

A gaseous hydrocarbon with the formula C4H10, existing in two isomeric forms and used as a fuel and a refrigerant.

Torsional Strain

A type of strain in molecules that occurs when atoms in a molecule are placed such that they cause repulsion by being in close proximity, often linked to bond angles and rotation around bonds.

Combustion

A chemical process that involves the rapid combination of a substance with oxygen to release heat and light.