Martin, an outspoken voice in the Leave campaign, used the release of his firm’s quarterly results to criticise those who warned that a vote for Brexit could result in economic slowdown.
He argued that the ‘irresponsible’ claims by figures such as Chancellor George Osborne, outoing Prime Minister David Cameron and Bank of England Governor Mark Carney had led to the situation potentially becoming a reality.
Martin wrote: "In my opinion, the above individuals and organisations are either dishonest, or they have a poor understanding of economics, since democracy and prosperity are closely linked and the EU is clearly undemocratic.
"By voting to restore democracy in the UK, I believe the UK's economic prospects will improve, although it is quite possible that the unprecedented and irresponsible doom-mongering may lead to some kind of slowdown.”
He added that despite the dire economic predictions Wetherspoon’s trade had strengthened slightly in the run up to the vote.
“We consequently anticipate a modestly improved outcome for this financial year,” said Martin.
However, he added: "Caution should be exercised in extrapolating current levels of sales growth for future years."