In this respect, air transport is very different from most other goods and services. With
manufactured goods there is no restriction normally on which countries can supply a particular
product. Thus, there is no restriction which states that only Korea and the UK can supply the
Korean and UK markets with motor vehicles. These types or restrictions are absent in the
industry which is most similar to air transport- shipping. Shipping lines from any country can
carry cargo between any other pairs of countries. Thus shipping lines from Denmark or
Singapore or China can carry goods from Australia to the US or Japan to Canada. In many cases,
the shipping markets of pairs of countries are dominated by shipping lines which are from
neither of the countries. The shipping lines which are most competitive in serving a particular
market are the ones which serve it – in this way, the costs of shipping is minimised.