A lot of readers write in asking what about external balances – what they mean etc. They are also sometimes puzzled why I say that the external sector in Australia is currently (and typically) draining real growth in the economy when at the same time they read that the terms of trade are at record levels and that we are in the midst of a “once-in-a-hundred-years” mining boom which is reshaping our economy. So today’s release by the ABS of the latest (September quarter 2011) – Balance of Payments and International Investment Position, Australia – provides me with a platform for a brief (I promise) explanation of these concepts and how they might be interpreted from a Modern Monetary Theory (MMT) perspective. The bottom line is that for Australia, our external sector continues to drain growth.