Solution : Measurement is a comparison of an unknown quantity with a known fixed quantity of the same kind. The value obtained on measuring a quantity is called its magnitude. Magnitude of a quantity is expressed as numbers in its units.

What is the meaning of a four-firm concentration ratio?

ANS: A four-firm concentration ration of 60 % means the largest four firms in an industry account for 60 % of sales; a four-firm concentration ratio of 90 % means the largest four firms account for 90 percent of sales.

What is the meaning of a four-firm concentration ratio of 60 percent what is the meaning of a four-firm concentration ratio of 90 percent?

Answer: A four-firm concentration ratio of 60 percent means the largest four firms in the industry account for 60 percent of sales; a four-firm concentration ratio of 90 percent means the largest four firms account for 90 percent of sales (just add the percentage of sales for the largest four firms).

What are the shortcomings of concentration ratios as measures of oligopoly power?

Concentration Ratios Within the Scope of a Market One of the shortcomings of applying concentration ratios to monopoly and oligopoly power over a market is that it can provide inaccurate results due to a scope of the market. Markets can be local, national and even global, which can shift the range of the results.

What is the correct measurement?

Explanation: A “correct” measurement means that the accepted value is the “real” value – within known and allowable variations. Precision is a measure of how consistently you get the same value with repeated measurements.

How do you calculate Herfindahl index?

The term “HHI” means the Herfindahl–Hirschman Index, a commonly accepted measure of market concentration. The HHI is calculated by squaring the market share of each firm competing in the market and then summing the resulting numbers.

How do you find the concentration ratio?

The concentration ratio is calculated as the sum of the market share percentage held by the largest specified number of firms in an industry. The concentration ratio ranges from 0% to 100%, and an industry’s concentration ratio indicates the degree of competition in the industry.

How do you find the Herfindahl index?

What is measurement and what is its need?

Measurement is the process by which we measure a physical quantity using a specified instrument for that quantity. In technological know-how and engineering, we carry out experiments. We should take readings during experiments. Therefore, a few measures are needed for these types of experiments.

What is the five firm concentration ratio?

The concentration ratio is calculated as the sum of the market share percentage held by the largest specified number of firms in an industry. A rule of thumb is that an oligopoly exists when the top five firms in the market account for more than 60% of total market sales.

WHAT DO concentration ratios measure in economics?

Concentration ratio indicates the level of competition between firms comprised in an industry. It is the ratio of the size of the firms to the entire industry. A high concentration ratio closer to 100% indicates the existence of a monopoly in an industry or lack of competition to such firms.

What is the Herfindahl Index and how is it calculated?

The term “HHI” means the Herfindahl–Hirschman Index, a commonly accepted measure of market concentration. The HHI is calculated by squaring the market share of each firm competing in the market and then summing the resulting numbers. The HHI takes into account the relative size distribution of the firms in a market.

What is the Herfindahl Hirschman Index calculator?

The HHI calculator is a tool that easily computes the value of the Herfindahl-Hirschman Index. The HHI Index measures the market concentration (not capitalisation) of a particular industry and is used to determine market competitiveness.

What is the concentration ratio in industry a quizlet?

STUDY. 1. A concentration ratio. a. measures the percentage of total sales of the top firm in the industry.