Example

Profit Increase and Economic Rent from Switching Technology

When a firm switches from an older technology (B) to a newer, more cost-effective one (A) while revenue remains constant, the resulting increase in profit is also the economic rent gained from the innovation. For instance, if producing 100 meters of cloth costs £50 with technology B and £40 with technology A, the cost reduction is £10. This cost saving translates directly into a £10 increase in profit, which represents the economic rent for adopting the new technology. The calculation is as follows:

Change in Profit=Change in RevenueChange in Costs\text{Change in Profit} = \text{Change in Revenue} - \text{Change in Costs} =0(£40£50)= 0 - (£40 - £50) =£10= £10

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Updated 2026-05-02

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