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Assume that we are modeling inter-temporal consumption for a typical consumer. Further assume that we measure current consumption on the horizontal axis and future consumption on the vertical axis. A market exists where borrowing and lending can occur for a fixed interest rate, r. When a consumer can lend or borrow at the same interest rate, the consumer's budget constraint is a straight line.
Common Descent
A principle of evolutionary biology that suggests all organisms on Earth are descended from a common ancestor.
Charles Darwin
The 19th-century naturalist who proposed the theory of evolution by natural selection, revolutionizing our understanding of life on Earth.
Geologists
Scientists who study the Earth, its materials, and the processes by which it is formed and changed, providing insights into the planet's history.
James Hutton
James Hutton is known as the father of modern geology for his work in the late 18th century that introduced the concept of deep time and the principle that the earth is shaped by ongoing processes.
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