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Discuss the main factors that determine product prices in the UK

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  1. Introduction
  2. Two main types of firms' objectives
  3. Problems with theoretical explanations
  4. The idea that prices are closely related to costs
  5. Conclusion
  6. Bibliography

Predicting firms' behaviour and reactions to events is central for recent microeconomics. Economists have indeed put forward many theories to analyse firms' behaviour, main decisions of economic interest relate to outputs, investment, technology and above all prices which is the object of this essay. Price can be defined by ?the value of the goods or money that must be given up to acquire a good or service? or, more economically by the average revenue, which corresponds to the total revenue / total output. Generally, it corresponds to the intersection point of the demand and the offer curves. The aim of this essay is to analyse and critically discuss the main factors that determine product prices in the UK. I shall argue that prices depend certainly on firms' objectives and market structure but more importantly on costs and firms' strategies.

[...] Mark-up theories of pricing are particularly widespread in Post-Keynesian economics. Thus, according to Michal Kalecki the main factors which determine prices are average prime costs and prices of other firms in the same industry: Price = mU + nP (where U is the Unit prime cost, P the weighted average of all firms' prices and m and n positive coefficients). The problem of mark-up pricing is that an array of price is possible for a firm depending on the practices it adopts and the manner it estimates its costs. [...]

[...] The rule in profit maximisation firm is that marginal revenue equal marginal cost (MC). Where e is the elasticity of demand, the price = MC. This implies that prices will be higher in monopoly than in perfect competitive markets. Market structure may indeed influence firms' pricing. Since markets closer to monopoly than perfect competition have more market power, prices may be higher. (Diagram 1). As it can be seen on the diagram, under perfect competition, price is determined by the intersection of demand and supply: PC. [...]

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