Increasing Returns and the New World of Business

Classical economics assumes 'diminishing returns': producing more of something eventually gets harder and more expensive (a farmer runs out of good land, a factory hits capacity constraints). Arthur argued that knowledge- and technology-based industries often work the opposite way: high upfront costs to build the product, but then almost-free costs to reproduce and distribute it, combined with network effects and switching costs that make a product more valuable to existing users as more people adopt it. In that environment, an early lead doesn't fade — it compounds, because being ahead makes it easier to get further ahead.