Principles Of Economics Asia-pacific Edition Review

Linh’s friend, Sam, ran a cà phê sữa đá stand next door. He was fast at making coffee but slow at chopping herbs. Bà Tám was excellent at broth but clumsy with coffee. Linh proposed a trade: each morning, Sam’s helper would chop Linh’s herbs, and Linh’s helper would grind Sam’s coffee beans. By specializing according to comparative advantage (not just doing what they were good at, but what they were relatively better at), both stands increased output without extra labor. Total bowls rose to 95; coffee cups rose to 120.

When a typhoon damaged the cinnamon crop in the Central Highlands, cinnamon prices tripled. Linh’s pho spice mix cost more. She worried: if she raised the price, would customers leave? She tested a 5,000 VND increase. Sales dropped only 2%. Demand was inelastic —workers needed quick, hot breakfast. She passed most of the cost to consumers. principles of economics asia-pacific edition

Bà Tám had limited time (4 a.m. to 10 a.m.), limited broth capacity (one large pot), and limited rice noodles. Linh calculated: producing the 81st bowl would require buying a second pot and waking at 2 a.m. The opportunity cost of that bowl was losing sleep and delaying her university homework. For now, 80 bowls was the efficient frontier. Linh’s friend, Sam, ran a cà phê sữa