Chapter 3 Competitive Markets and Perfect Competition Flashcards
Define price taker
A firm has to accept the price ruling in the market
What are the five assumptions of perfect competition?
Price taker Homogenous products Freedom of entry and exit Large number of buyers and sellers Perfect knowledge
Homogenous
All products are the same irrespective of who makes them
Freedom of entry and exit
Any firm can enter the industry as there are no barriers to entry to keep them out
Large number of buyers and sellers
This is to ensure that the product is sold and the firm is a price taker
Readily available information
We assume that all firms have equal access to any technological improvements and that all firms have equal advantages. Thus firms are unlikely to engage in research and development as the results will be available to other firms
Why is p=AR=MR=D
The firm is thus faces a perfectly elastic d curve. P is unaffected by variations in output and so the MR resulting from an increase in sales by one output is constant and equal to price
Define allocative efficiency
The optimum allocation of scarce resources that best accords with consumers pattern of demand. Where P=MC.
Optimum output
The optimum combination of fixed and variable factors that minimise AC
Static efficiency
Efficiency at a point in time - includes allocative and productive efficiency
Dynamic efficiency
Efficiency over time and concerns the production of new products, new techniques and new processes,and for firms to undertake investment in R+D they need to make supernormal profits.