In responding to this question, it is worth remembering that a company either distributes its after tax profits to its shareholders or uses it in its business

GDP growth in most of Australia's major trading partners had risen to be above its five-year average over 2017 and that this momentum appeared to have been maintained into 2018.

Members noted that a lack of ‘animal spirits’ following the global financial crisis probably helped explain why non-mining business investment had not been as strong as expected over this period.

But in some corners of the globe—including Switzerland, Australia, Norway and Canada—large and rising household debt is percolating as an economic problem.

Each of those four nations has more household debt—including mortgages, credit cards and car loans—today than the U.S. did at the height of last decade’s housing bubble.

Limiting foreign ownership in new developments 50% Cap.

Charging foreign owners who leave their residential properties vacant

Improving the integrity of capital gains tax rules for foreign investors from 1 July 2017

The other main cryptocurrencies include Ethereum ($875 million); Ripple ($288 million), Litecoin ($183 million) and Monero ($94 million). 

To give some context, in early 2015 a bitcoin was worth $US 300 – so many have made a lot of money - some real; some only paper at this stage.