Which of the Following Is Not True About the Use

question 84

Multiple Choice

Which of the following is not true about the use of dummy activities in project networking?

• A)They preserve the separate identities of activities.
• B)They clarify precedence relationships among activities.
• C)They have an activity time equal to zero.
• D)They have an activity time variance equal to zero.
• E)They are used in activities-on-nodes (AON)network diagrams.

---

Definitions:

Import Competition

Import competition involves domestic companies facing competition from foreign-produced goods and services in the domestic market.

Four-firm Concentration Ratio

A metric that indicates the total market share owned by the four largest firms in an industry, used to assess the degree of market concentration and competition.

Market Shares

The share of a market that a specific company holds, typically represented by the percentage of total market sales it accounts for.

Herfindahl Index

The Herfindahl Index is a measure of market concentration used to determine the intensity of competition within an industry, calculated by summing the squares of the market shares of all firms within the market.