Monopolies Need Some Type of Barrier to Entry to Keep

question 40

True/False

Monopolies need some type of barrier to entry to keep potential competitors away.

---

Definitions:

Ex Post Facto Design

Ex Post Facto Design is a research approach where investigators study variables after the events have occurred, analyzing the effects of naturally occurring differences without manipulation.

Correlational Study

A research method that examines the relationship between two or more variables to determine if a change in one is associated with a change in others.

Retrospective Study

A research design that looks back in time to analyze data from past records to investigate a particular outcome or phenomenon.

Prospective Study

A research design that follows participants forward in time to examine the relationship between specific exposures and outcomes.