Studies Have Shown That Drinking One Glass of Red Wine

question 196

Multiple Choice

Studies have shown that drinking one glass of red wine per day may help prevent heart disease.Assume this is true,and a fungal disease destroys a large portion of the grape harvest of California vineyards.In the market for red wine,these two developments would

• A)increase demand and increase supply,resulting in an increase in the equilibrium quantity and a decrease in the equilibrium price of red wine.
• B)increase demand and decrease supply resulting in a decrease in both the equilibrium quantity and the equilibrium price of red wine.
• C)increase demand and decrease supply,resulting in an increase in the equilibrium price and an uncertain effect on the equilibrium quantity of red wine.
• D)increase demand and decrease supply,resulting in an increase in both the equilibrium price and the equilibrium quantity of red wine.

---

Definitions:

Control Group

In experimental research, a group of subjects that does not receive the experimental treatment and is used as a benchmark to measure how the other tested subjects do.

Placebo

An inert or innocuous substance given to a patient instead of genuine medication, used in studies to evaluate the efficacy of treatments.

Confederate

An individual who is part of an experiment but pretends to be a participant and is aware of the study's aims.

Experimental

Pertaining to a methodological approach that involves manipulating one variable to determine if changes in one variable cause changes in another variable.