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What are the 4 major assumptions in Parse theory?

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Final answer:

The four basic assumptions of perfect competition are many buyers and sellers, identical products, free entry and exit, and perfect information. These imply that a perfectly competitive firm has no control over market prices, provides homogeneous products, and can freely enter or exit the market with full market transparency.

Step-by-step explanation:

Major Assumptions of Perfect Competition

The four basic assumptions of perfect competition include:

  1. Many buyers and sellers: There are numerous participants on both the buying and selling sides, which means no single participant has any control over the market price.
  2. Identical products: The products offered by each firm are homogeneous and indistinguishable from one another in the eyes of consumers.
  3. Free entry and exit: New firms can enter the market without any restrictions, and existing firms can leave the market without incurring significant losses. This ensures the market is always competitive.
  4. Perfect information: All participants have complete and instantaneous knowledge about prices, product quality, and other relevant factors, which makes the market transparent and efficient.

For a perfectly competitive firm, these assumptions imply that it is a price taker with no market power to influence prices. The firm's only choice is how much output to produce at the prevailing market price. Moreover, the firm can enter or exit the market freely depending on whether they can earn profits or are incurring losses.

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