Exercise 05: Theory of Uneven Development

1)

World income and distribution before trade

  Country A Country B
Product Man-days Output per man-day Total Output Man-days Output per man-day Total Output
Wheat 200 4 800 200 4 800
Watches 200 4 800 200 3 600

Which country is less efficient at producing watches?    _Country B_________

(2)

World income and distribution after trade

  Country A Country B
Product Man-days Output per man-day Total Output Man-days Output per man-day Total Output
Wheat 100 4.5 450 300 3.5 1050
Watches 300 4.5 1350 100 2 200

What happened to the wheat-producing efficiency of country A after it started to trade?    _Increased_________

What happened to the wheat-producing efficiency of country B after it started to trade?    _Decreased_________

How do you explain this?    _Wheat production suffers from decreasing returns to scale_________

 

What happened to the watch-producing efficiency of country A after it started to trade?    _Increased_________

What happened to the watch-producing efficiency of country B after it started to trade?    _Decreased_________

How do you explain this?    _Watch production benefits from increasing returns to scale_________