" The key thing about wealth in a capitalist economy is that it reproduces itself and usually earns a positive net return. "
- Robert Solow

In a capitalist economy, wealth tends to grow over time through various mechanisms such as investments that yield returns or assets like property that appreciate in value. This means that people who have more money can usually make even more by putting their resources into ventures that generate income.

The deeper meaning of this statement reveals the inherent nature of capitalism where those with initial capital advantage are positioned to gain further wealth through reinvestment and market participation. It highlights a systemic aspect of economic inequality, suggesting that the accumulation of wealth is not just about individual effort but also about the ability to leverage existing resources for more gains. This dynamic can create a cycle where the rich get richer, as their financial assets provide opportunities for investment that yield returns, while those without substantial capital may struggle to break into this cycle.

The quote is attributed to Robert Solow, an American economist known for his work on economic growth theory and contributions to understanding how technology influences productivity. His insights have been instrumental in shaping modern economic policy discussions and theories regarding long-term growth and development.