Q

P

Demande locale

Coût marginal

pm

Situation dans le pays A avant ouverture commerciale

Coût de transport

Q

P

Demande locale

Coût marginal

pm

Situation dans le pays A avant ouverture commerciale

Coût de transport

Qm

Production entreprise 1 (locale)

Exportations de l’entreprise 2 (étrangère) sur le marché local

Qm

Fonction réaction entreprise locale

Fonction de réaction de l’entreprise étrangère

Equilibre de Cournot

FR après subvention

FR étrangère après imposition de barrères commerciales sur le marché local

Japanese market US market

Motorola

Fujitsu

€

€ €

€

Quantities

Quantities

Quantities

Quantities

Marg.revenue

Marg.cost

Japanese market US market

Motorola

Fujitsu

€

€ €

€

Quantities

Quantities

Quantities

Quantities

Marg.revenue

Marg.cost

Jap.tariff Induced cost increase

Japanese market US market

Motorola

Fujitsu

€

€ €

€

Quantities

Quantities

Quantities

Quantities

Marg.revenue

Marg.cost

Jap.tariff Induced cost increase

Induced increase in marg. revenue

Japanese market US market

Motorola

Fujitsu

€

€ €

€

Quantities

Quantities

Quantities

Quantities

Marg.revenue

Marg.cost

Jap.tariff Induced cost increase

Induced increase in marg. revenue

Induced cost decrease

Induced increase in marg.revenue

Japanese market US market

Motorola

Fujitsu

€

€ €

€

Quantities

Quantities

Quantities

Quantities

Marg.revenue

Marg.cost

Jap.tariff Induced cost increase

Induced increase in marg. revenue

Induced cost decrease

Induced increase in marg.revenue

Two families of international trade models

PARADIGM Comparative advantage

(based on what?)

Intra-industry

trade

Labor productivity: Ricardo

Factor endowments: Heckscher-Ohlin

Reciprocal dumping

IPEP .

Product differentiation

Gains from trade Specialization

Gains from trade Specialization Stolper-Samuelson

° Imported competition°

Strategic trade protection

North-South trade Globalization Income inequality Declining industries

North-North trade Strategic trade policy Industrial policy °Sunrise° industries

MODELS

RESULTS

APPLICATION & ISSUES

Out InOut (0,0) (0,1)In (1,0) (-1,-1)

Joueur 2

Joueur 1