As a simple exercise to give you some idea of where we’re headed, let’s refer to Rumplestatskin this morning, who shows that iron ore alone represents almost 30% of the export basket that makes up the terms of trade. Coal makes up another large component above 20%:
……So, if we use the conservative Westpac projection of a 16% fall in the value of iron ore and a 5% fall in value of total coal exports (which is obviously a very conservative guess because we don’t know the coking coal weighting), that would translate to a terms of trade fall around 12% in January next year.
via Terms of trade shock brewing? – macrobusiness.com.au | macrobusiness.com.au.