Unit Root Processes, Such as a Random Walk (With or Without

question 4

Multiple Choice

Unit root processes, such as a random walk (with or without drift) , are said to be:​

• A)​integrated of order one.
• B)​integrated of order two.
• C)​sequentially exogenous.
• D)​asymptotically uncorrelated.

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Definitions:

Sorokin

Pitirim Sorokin was a Russian-American sociologist known for his contributions to social cycles theory and for founding the sociology department at Harvard University.

Cyclical Theory

A theory that suggests historical events and stages of society repeat themselves in cycles due to underlying patterns or forces.

Social System

A social system is an interdependent set of cultural and structural elements that interact and influence human behaviour and relationships in a society.

Social Problem

Issues within society that are recognized by a significant number of people as being undesirable or needing improvement.