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The solution to the puzzle of why the rate of substitution is approximately constant per year, despite drastic differences in generation time among species, relies on the
Nonessential Diamonds
Diamonds categorized as luxury items, not required for basic living or survival needs.
Diamond-water Paradox
The contradiction observed in value theory where essential goods like water have low prices, while non-essential goods like diamonds have high prices.
Essential Goods
Products that are necessary for basic living and well-being, often unchanged by changes in income.
Nonessential Goods
Products and services considered as non-critical for survival or basic living standards.
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