Explore Sir Arthur Lewis’s contributions to development economics, including his Nobel-winning dual-sector model, known as the Lewis Model, fostering economic growth.
Discover how the Irrelevance Proposition Theorem explains debt's impact in corporate finance, its origin by Nobel-winning economists, and insights into its real-world applications.
After 10 text and 4 image tests, OpenAI's latest model barely beats GPT-5.1. What are Plus subscribers really getting?
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