60 likes | 218 Views
International Economics. Lecture 6 | Carlos Cuerpo | Scale, Competition and Trade. S cale, competition and trade: Motivation. The observed importance of intra-industry trade: Traditional Trade Theory is no longer able to explain these patterns
E N D
International Economics Lecture6 | Carlos Cuerpo | Scale, Competition and Trade
Scale, competition and trade:Motivation • The observed importance of intra-industry trade: • Traditional Trade Theory is no longer able to explain these patterns Exports and Imports within sectors exhibit a tendency towards equalization rather than national specialization Grubel-Lloyd index indicates the relative importance of inter (tends to 0) vs. intra-industry (tends to 1) trade • A new Trade Theory was needed to explain why similiar countries (in terms of technology, endowments,…) gain from trading with each other and why a significant part of that trade is made within the same industries. Intra-IndustryTrade: Balassa (1966) showedthatthetrade share of thedominantsuppliers in anindustryduringtheimplementation of the EEC decreased in practicallyallindustries
Scale, competition and trade:basic assumptions • Economies of Scale: Figure 1. Unit Cost of Production IncreasingReturnstoScale: Output growsproportionately more thantheincrease in inputs. Source: WTO World Trade Report 2008
Scale, competition and trade:basic assumptions • Economies of Scale: • Common inreal-life situations: Existence of fixed costs, that get distributed over a larger number of units, as the output level increases. • IRS result in Production Frontiers that are CONVEX IncreasingReturnstoScale: Output growsproportionately more thantheincrease in inputs. Y B’ • Pre-Trade Equilibrium: A. With identical technology, endowment and preferences. • Trade allows complete specialization [B, B’] • If we allow a 1 to 1 exchange ratio, we reach a higher indifference curve. • Pattern of Trade is not determined: Historical accidents P II A I B X
Scale, competition and trade:basic assumptions • Product Differentiation: • We do not observe complete specialization because consumers prefer to choose from differen variaties: 'love of variety' This leads to Intra-Industry Trade, which arises to take advantage of economies of scale in production. • Intra-industry trade benefits consumers because of the wider range of choices available, and the lower prices due to Ec of Scale. • Both types of trade (inter and intra-industry) occur today and are backed by different theories. DifferentiatedProducts: Thesomewhatdifferentproductsproducedbydifferentmanufacturers in thesameindustry International competition forces each firm in industrial countries to produce just a few varieties and styles of the same product in order to keep unit costs low.
Scale, competition and trade:Assignment • Evaluate the relative importance of economies of scale and comparative advantage incausing the following: • Most semiconductors are manufactured in either the US or Japan. • Most of the world's aluminium is smelted in Norway or Canada. • Much of the world's best wine comes from France. • Half of the world's large jet aircraft is assembles in Seattle. • Most Scotch whiskey comes from Scotland