Model Setup
qiljh – flow on link h joining node il with node j
qjklh – flow on link joining node j with node klh
?il1jh – the price associated with the product in currency h transacted between manufacturer il and retailer j
?j2khl – the price associated with retailer j and demand market k in currency h and country l
?3khl – the price of the product at demand market k in currency h and in country l
eh – the rate of appreciation of currency h against the basic currency