To make up ground, researchers at the Centre for Economics and Business Research (CEBR) say an additional bank holiday in October could add £500m($621m) to the British economy in extra spending; an idea in contrast to the think tank’s position in 2012 that every bank holiday cost the UK £2.3bn. In this case, the CEBR believes that a bank holiday – “after a period of enforced abstinence”– could provide a double boost in retail sales as well as hospitality and catering. They say lost productivity can be made up for elsewhere given more people can work flexibly and the economy is not yet working at full capacity.

And the UK needs the boost. Its economy is expected to suffer the worst damage among developed economies as businesses struggle to recover from the pandemic. The Organisation for Economic Cooperation and Development (OECD) projects an 11.5% contraction in 2020 with a return to current levels at least three years away. The Bank of England’s forecast is even bleaker, predicting that the economy could shrink 14% this year – the worst in more than 300 years. In the tourism industry alone, the impact of Covid-19 is expected to cost £37bn ($46bn) according to Patricia Yates, the acting chief executive of VisitBritain. Domestic tourism could help soften the blow as foreign visitors stay away.

The CEBR sees little downside to tacking on an additional public holiday. It added one caveat: that additional costs to employers could damage financial positions already devastated by lockdown. This, it said, could be minimised “as long as employees negotiate flexibly over pay and shift premia”.

Early in June, British Culture Secretary Oliver Dowden called the October bank holiday an “excellent proposal”, but it may not happen. The Telegraph broadsheet says that the Business, Energy and Industrial Strategy department has ruled out the idea due to its “£1bn-plus economic cost”, citing the example of the one-off bank holiday for the Queen’s Diamond Jubilee in 2012.

New Zealand is also ‘actively considering’ more public holidays to encourage domestic tourism, Prime Minister Jacinda Ardern has said. Like Britain, New Zealand sorely needs more spending power: the OECD expects New Zealand’s gross domestic product to drop by 8.9% this year.

New Zealand’s proposal has strong backing from Tourism Industry Aotearoa (TIA), a private sector organisation which has been alarmed by empty rooms and cancelled bookings over the past few months. The tourism industry employs 14.4% of all workers in New Zealand, and is the single largest foreign exchange earner with NZ$17.2bn ($11.1bn, £8.9bn) last year.

“New Zealand’s existing public holidays are an incredibly important part of domestic tourism, which is all we have while borders remain closed to international visitors,” says Chris Roberts, chief executive of TIA. “Our tourism operators report that their takings can be 200% to 300% higher when we have a long weekend.”

Ardern’s administration says extra holidays are still up for discussion, but its populist coalition partner, New Zealand First, is among those opposed to them. Its leader Winston Peters says they will cost small businesses in particular, and risk thousands of workers’ jobs. “[For most businesses] it’s another day of no income when they need it as business owners to pay all their bills,” he wrote on Facebook in mid-May.

Do holidays help or harm?

The idea to add another holiday is not unique to the UK or New Zealand. Other countries have added public holidays including Japan, Malaysia and Italy. But the results have been mixed.

In 2011, Italy added a one-off holiday to mark the 150thanniversary of Italian unification. Analysing the economic data around the holiday three years later, Francesco Maria Esposito, then at the Catholic University of Milan, found a small but positive impact.

Not everyone has seen an upside, though. In 2015, consultants at PwC consideringthe impact of adding an extra bank holiday in the Australian state of Victoria advised that the costs outweighed the benefits, leaving a hole of A$150m ($104m, £82m) even after increased consumer spending. Similarly, in a 2017 report by the Central Bank of Malaysia, researchers estimated that the small nation’s gross output loss from an unanticipated holiday was MYR3.5bn ($820m, £650m) per day. “Sudden declarations of public holidays can be disruptive and costly to the economy, particularly given the reduced production activity and increased input cost,” they warned.

Central to the question of whether public holidays boost economies is whether the loss of productivity by letting employees off work is dwarfed by the benefit of having more consumers spending on these holidays. The concept has become a partisan issue that pits retail and tourism industry lobbyists against manufacturers and traditional employers’ groups, who see it as an unnecessary cost to business.

“The argument for more public holidays to boost growth makes sense where leisure spending is a significant part of consumption,” says the British economist Razia Khan, Standard Chartered Bank’s chief economist for Africa and the Middle East. “So, the public holiday will boost consumption and overall economic activity.” There are other dividends, too: an Italian paper in 2014 showed unexpected benefit of a paid day off on staff morale, saying workers were more productive the day after a holiday because they were “rested and relaxed”.

But others disagree. “An extra holiday might be good for people’s wellbeing and provide a temporary lift to the tourism sector, but it’s another cost on business,” says Cameron Bagrie, managing director of Wellington-based research firm Bagrie Economics. Instead, he says, “If we want to see a sustained recovery in the tourism sector, people are going to need money in their pockets and the best way to achieve that is getting the economy working and people back into paid employment.”

So, will there be a holiday?

There are compelling arguments for and against one-off holidays to aid economies in recovery from Covid-19 damage. And, even as some research suggests that there might be an “optimal number of public holidays” for each country, we still may be stuck in an economist tug of war over whether or not we’ll change our calendars.

Even proponents, including Roberts of Tourism Industry Aotearoa, understand that the answer isn’t black and white. Some businesses will have to shoulder the cost of lost productivity, but he sees it as a necessary evil: “A single public holiday will not replace the losses [businesses] have suffered, but will go some way toward keeping those businesses operating and saving jobs.”

Of course, jobs means money in workers’ pockets to spend in a country’s economy – but whether they’ll be spending it during an extra day of leisure or not is still a toss-up.