Yet again, the UK government has sided with the robotraders on a Robin Hood Tax

A financial transactions tax is the most economically efficient way to lessen the harm of HFT – but the government keeps fighting it.

Fifteen years ago the computer program Deep Blue made headlines around the world by beating chess giant Garry Kasparov. In the years since, computer algorithms have quietly gone on to dominate large parts of the financial markets.

Computer-driven trading now accounts for 70 per cent of trading in the US equity market, 36 per cent in the UK. Machines fire tens of thousands of trades a second, relying on state-of-the art technology and proximity to stock exchanges to shave microseconds off transaction times.

Yet tiny errors in the algorithms can have devastating consequences. During the infamous 'Flash Crash' of 2010 the Dow Jones index dropped nine per cent in a matter of minutes. Over the summer Knight Capital – a leading New York HFT (high frequency trading) firm – erroneously swamped the stock market with errant trades, wiping $440m from the firm's value.

That's why the European Parliament's powerful Economic Affairs Committee this week voted through legislation – the Markets in Financial Instruments Directive II – designed to curb HFT. A key proposal being that trades will have to be posted for at least 500 milliseconds (currently traders can execute 10,000 trades during the same period).

Proponents of HFT argue their churning sea of trades brings liquidity to the markets. The reality is more capricious - in times of crisis traders pull the plug, draining liquidity when it is needed most.

Adair Turner described such corners of financial markets as "socially useless". The Financial Times recently said “hard evidence and common sense point to a host of social benefits from removing unnecessary intermediation and curbing predatory trading strategies”, adding that in some areas Mifid II was simply too mild.

It's no surprise that high frequency traders themselves have mounted a defence against the reforms. What's of more concern is that in the days preceding the vote the UK Government lobbied for them to be watered-down. Its official response did not support the call for HFT firms to hold equities for a minimum period.

Yet as the Bureau for Investigative Journalism revealed last week, of a 31-member panel tasked by the UK Government to assess Mifid II, 22 members were from the financial services, 16 linked to the HFT industry. A study by the Bureau last year revealed that over half the funding for the Conservative Party came from the financial sector, 27 per cent coming from hedge funds, financiers and private equity firms. This perhaps helps explain how the interests of a select group of traders get confused with the interests of the economy as a whole.

It's a similar story for the Financial Transaction Tax. No longer a pipe dream, European Governments of all political hues, including its largest economies, are working towards its implementation by next year. The tax of between 0.1 - 0.01 per cent on financial transactions offers a more effective mechanism to limit market excesses by making certain speculative trades less profitable. But crucially, it is also capable of raising billions in much needed revenue that would ensure the financial sector pays it fair share for the damage caused to our economy.

Yet the UK Government has again chosen to stand apart in blocking a Europe wide-FTT, turning down billions in desperately needed revenue that could help save jobs, protect the poorest and avoid the worst in cuts to public services. Instead, advice of previous Party Treasurers Michael Spencer and Peter Cruddas was heeded, who infamously lobbied against the FTT. Both incidentally own multi-million pound financial firms which would be hit by such a tax.

Taken together, this tells the story of a post-financial crisis Europe: as governments embark on the arduous task of making markets once again work in the interests of society, the UK Government remains intoxicated by the Square Mile - protecting vested interests and relying on the same market principles that got us into this mess to get us out again. Best brace ourselves for a bumpy ride.

The EU Parliament. Photograph: Getty Images

Simon Chouffot is a spokesperson for the Robin Hood Tax campaign and writes on the role of the financial sector in our society.

Photo: Getty
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PMQs review: Jeremy Corbyn prompts Tory outrage as he blames Grenfell Tower fire on austerity

To Conservative cries of "shame on you!", the Labour leader warned that "we all pay a price in public safety" for spending cuts.

A fortnight after the Grenfell Tower fire erupted, the tragedy continues to cast a shadow over British politics. Rather than probing Theresa May on the DUP deal, Jeremy Corbyn asked a series of forensic questions on the incident, in which at least 79 people are confirmed to have died.

In the first PMQs of the new parliament, May revealed that the number of buildings that had failed fire safety tests had risen to 120 (a 100 per cent failure rate) and that the cladding used on Grenfell Tower was "non-compliant" with building regulations (Corbyn had asked whether it was "legal").

After several factual questions, the Labour leader rose to his political argument. To cries of "shame on you!" from Tory MPs, he warned that local authority cuts of 40 per cent meant "we all pay a price in public safety". Corbyn added: “What the tragedy of Grenfell Tower has exposed is the disastrous effects of austerity. The disregard for working-class communities, the terrible consequences of deregulation and cutting corners." Corbyn noted that 11,000 firefighters had been cut and that the public sector pay cap (which Labour has tabled a Queen's Speech amendment against) was hindering recruitment. "This disaster must be a wake-up call," he concluded.

But May, who fared better than many expected, had a ready retort. "The cladding of tower blocks did not start under this government, it did not start under the previous coalition governments, the cladding of tower blocks began under the Blair government," she said. “In 2005 it was a Labour government that introduced the regulatory reform fire safety order which changed the requirements to inspect a building on fire safety from the local fire authority to a 'responsible person'." In this regard, however, Corbyn's lack of frontbench experience is a virtue – no action by the last Labour government can be pinned on him. 

Whether or not the Conservatives accept the link between Grenfell and austerity, their reluctance to defend continued cuts shows an awareness of how politically vulnerable they have become (No10 has announced that the public sector pay cap is under review).

Though Tory MP Philip Davies accused May of having an "aversion" to policies "that might be popular with the public" (he demanded the abolition of the 0.7 per cent foreign aid target), there was little dissent from the backbenches – reflecting the new consensus that the Prime Minister is safe (in the absence of an attractive alternative).

And May, whose jokes sometimes fall painfully flat, was able to accuse Corbyn of saying "one thing to the many and another thing to the few" in reference to his alleged Trident comments to Glastonbury festival founder Michael Eavis. But the Labour leader, no longer looking fearfully over his shoulder, displayed his increased authority today. Though the Conservatives may jeer him, the lingering fear in Tory minds is that they and the country are on divergent paths. 

George Eaton is political editor of the New Statesman.

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