Evidence is now emerging of just how extraordinarily wasteful Donald Trump's trillion-dollar corporate tax cut has been as the results -- or lack thereof -- filter into the real US economy.

It's now well-established that the bulk of the tax cuts have gone into record-breaking share buybacks and increased dividends by US companies, with hundreds of billions of dollars flowing or set to flow back to investors. But not a lot of the rest is flowing into extra investment -- the raison d'etre of company tax cuts. New investment data shows US equipment investment fell in the first quarter of the year compared to the final quarter of 2017. How about wages, which are supposed to increase due to company tax cuts (at least according to Mathias Cormann)? In June, monthly wage growth in the US fell to 0.2% from 0.3% in March, lower than expected and leaving wage growth at 2.7% for the 2017-18 year. Inflation in the US was 2.8% for the year to May, suggesting US workers are actually going backwards after inflation.