Jevons paradox is an economic theory stating that increased efficiency in using a resource can lead to increased, rather than decreased, overall consumption of that resource.
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Jevons paradox is an economic theory stating that increased efficiency in using a resource can lead to increased, rather than decreased, overall consumption of that resource. Named after economist William Stanley Jevons, this occurs because efficiency improvements lower the cost per unit of the resource, which stimulates greater demand and potentially new uses, ultimately increasing total consumption. A classic example is how more efficient steam engines led to increased coal use because it made coal a cheaper energy source, driving broader industrial growth.
How it Works
1. Technological Progress & Efficiency:A new technology is developed that makes it more efficient to use a resource.
2. Lower Costs:The increased efficiency makes the resource cheaper to use per unit of output.
3. Increased Demand:Because it's cheaper, more people and industries begin using the resource, and existing users consume more of it.
4. Overall Consumption Rises:The increased demand from broader use and new applications can outweigh the efficiency gains per unit, leading to a higher total consumption of the resource.
Example: Steam Engines and Coal
The Innovation:James Watt's improved steam engine made coal a more efficient fuel source.
The Paradox: Instead of coal consumption decreasing, its use skyrocketed.
The Reason: The lower cost of energy from more efficient engines spurred economic growth and the development of new industries and transportation, which required vast amounts of coal.
Modern Implications
Digital Technology:Even though individual computers and data centers are more efficient, the explosion in their numbers and usage has led to a substantial increase in overall energy demand.
Fuel-Efficient Cars:Cheaper-to-run vehicles might encourage people to drive more miles or buy more cars, increasing total fuel consumption despite the better mileage per mile.
LED Lighting:Cheaper, more efficient LED bulbs can lead to more lighting being used in homes and businesses, such as lighting outdoor spaces, leading to higher overall energy consumption.
