The Notation for Panel Data Is (X_it, Y_it), I =

question 2

Multiple Choice

The notation for panel data is (X_it, Y_it) , i = 1, ..., n and t = 1, ..., T because

• A)we take into account that the entities included in the panel change over time and are replaced by others.
• B)the X's represent the observed effects and the Y the omitted fixed effects.
• C)there are n entities and T time periods.
• D)n has to be larger than T for the OLS estimator to exist.

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Definitions:

Prostate

a gland in the male reproductive system that produces seminal fluid.

Oxytocin

A hormone that acts on the brain, influencing social interactions and behavior, and plays a crucial role in childbirth and lactation.

FSH

Follicle-stimulating hormone, a gonadotropin involved in the regulation of reproductive processes, including the maturation of ovarian follicles in females and sperm production in males.

Growth Hormone

A hormone secreted by the pituitary gland that stimulates growth, cell reproduction, and regeneration in humans and other animals.