Boundaries and pr 10.7. COST REDUCTION AND THE HERFINDAHL AND LERNER INDEXES. Consider an industry where demand has constant price elasticity and firms compete in output levels. In an initial equilibrium, both firms have the same marginal cost, c. Then Firm 1, by investing heavily in R&D, manages to reduce its marginal cost to d'

Managerial Economics: Applications, Strategies and Tactics (MindTap Course List)
14th Edition
ISBN:9781305506381
Author:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Publisher:James R. McGuigan, R. Charles Moyer, Frederick H.deB. Harris
Chapter16: Government Regulation
Section: Chapter Questions
Problem 2E
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10.7
hold a more sceptical VI,
lead to more competitive markets; rather, they add, cartel breakdowns are frequently
associated with an increase in concentration. Which prediction seems more reasonable?
Are the two views inconsistent?
10.6. MARKET DEFINITION AND MARKET STRUCTURE. Consider the following goods: cement.
mineral water, automobiles, retail banking. In each case, determine the relevant market
boundaries and present an estimate of the degree of concentration.
10.7. COST REDUCTION AND THE HERFINDAHL AND LERNER INDEXES. Consider an industry
where demand has constant price elasticity and firms compete in output levels. In an
initial equilibrium, both firms have the same marginal cost, c. Then Firm 1, by investing
heavily in R&D, manages to reduce its marginal cost to c'<c; a new equilibrium takes
place.
(a) What impact does the innovation have on the values of H and L?
(b) What impact does the innovation have on consumer welfare?
(c) What do the previous answers have to say about Las a performance measure?
10.8. BARRIERS TO ENTRY AND WELFARE. "Barriers to entry may be welfare improving"
What particular industry characteristics might make this statement valid?
Transcribed Image Text:hold a more sceptical VI, lead to more competitive markets; rather, they add, cartel breakdowns are frequently associated with an increase in concentration. Which prediction seems more reasonable? Are the two views inconsistent? 10.6. MARKET DEFINITION AND MARKET STRUCTURE. Consider the following goods: cement. mineral water, automobiles, retail banking. In each case, determine the relevant market boundaries and present an estimate of the degree of concentration. 10.7. COST REDUCTION AND THE HERFINDAHL AND LERNER INDEXES. Consider an industry where demand has constant price elasticity and firms compete in output levels. In an initial equilibrium, both firms have the same marginal cost, c. Then Firm 1, by investing heavily in R&D, manages to reduce its marginal cost to c'<c; a new equilibrium takes place. (a) What impact does the innovation have on the values of H and L? (b) What impact does the innovation have on consumer welfare? (c) What do the previous answers have to say about Las a performance measure? 10.8. BARRIERS TO ENTRY AND WELFARE. "Barriers to entry may be welfare improving" What particular industry characteristics might make this statement valid?
Expert Solution
Step 1

The Lerner index is a measure of market power, which is the ability of a firm to raise prices above its marginal cost. It is calculated by dividing the difference between the market price and the marginal cost of production by the market price.

 

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