If new technology in a perfectly competitive market brings about a substantial reduction in costs of production, how will this affect the market?

First, it's essential to understand the characteristics of a perfectly competitive market. In a perfectly competitive market, there are many sellers and buyers, each selling an identical product. No single buyer or seller can influence the market price; they are all price takers. Producers aim to maximize their profit, which means they will produce up to the point where marginal cost equals marginal revenue.

With the introduction of new technology, the cost of production significantly reduces. This means that the marginal cost curve of individual firms will shift downward because the cost of producing each additional unit decreases. As a result, the point where marginal cost equals marginal revenue will likely change.

As the marginal cost decreases, firms can produce more goods at lower costs. This increase in production will result from firms' ability to earn higher profits at lower marginal costs while maintaining the same price. Consequently, the market supply curve will shift to the right, indicating an increase in the quantity supplied at every price level.

Since supply increases due to the reduction in marginal cost, the market supply curve shifts right. In a perfectly competitive market, the equilibrium price is determined by the interaction of demand and supply. With an increase in supply, the new equilibrium point will occur at a lower price level, meaning the market price will decrease.

The decrease in market price due to the increased supply, driven by reduced production costs, has several implications for consumers and producers. Consumers benefit from lower prices, increasing their overall consumer surplus. At the same time, producers, because of the reduced costs, still earn a profit even with the reduced market price, maintaining their producer surplus. However, the market will likely attract more producers, leading to a long-term equilibrium with normal profits for all firms in the industry. In conclusion, the substantial reduction in production costs due to new technology in a perfectly competitive market leads to a decrease in marginal cost and an increase in supply. This results in a lower market price, benefiting consumers, and maintaining profits for producers in the short run. In the long run, the market will reach a new equilibrium attracting more producers.