Wealth inequality has grown to the stage where 62 of the world's richest people own as much as the poorest half of humanity combined, according to a new report.

The research, conducted by the charity Oxfam, found that the wealth of the poorest half of the world's population - 3.6 million people - has fallen by 41 per cent, or a trillion US dollars, since 2010.

While this group has become poorer, the wealth of the richest 62 people on the planet has increased by more than half a trillion dollars to $1.76 trillion.

The report, "An Economy for the 1%", says the gap between the global richest and the global poorest has widened in just the last 12 months. In 2011 388 people had the same wealth as the poorest half of humanity. In 2011 this fell to 177. The number has continued to fall each year to 80 in 2014 and 62 in 2015. The research was released days ahead of the annual gathering of the world's elite in Davos for the World Economic Forum 2016.

Oxfam GB chief executive Mark Goldring said a crackdown on global tax havens was a necessary step towards ending the rampant global inequality.

"It is simply unacceptable that the poorest half of the world population owns no more than a small group of the global super-rich - so few, you could fit them all on a single coach," he said.

 "World leaders' concern about the escalating inequality crisis has so far not translated into concrete action to ensure that those at the bottom get their fair share of economic growth. In a world where one in nine people go to bed hungry every night we cannot afford to carry on giving the richest an ever bigger slice of the cake.

"We need to end the era of tax havens which has allowed rich individuals and multinational companies to avoid their responsibilities to society by hiding ever increasing amounts of money offshore.

"Tackling the veil of secrecy surrounding the UK's network of tax havens would be a big step towards ending extreme inequality. Three years after he made his promise to make tax dodgers 'wake up and smell the coffee', it is time for David Cameron to deliver."

In November the Public Accounts Committee of MPs warned that HMRC had made "little or no progress" on measures to reveal the scale of aggressive tax avoidance happening in Britain.

In addition, last year the Office for Budget Responsibility announced that George Osborne's tax avoidance crackdown had missed its target by hundreds of millions of pounds.
-- The Independent.