Lunn said that Jackson’s criticism of the work was based on an out of date source.
Jackson said Flutter had “different data” and referred to an NHS survey which found that the problem gambling risk among the total population was 0.4 per cent (or 1-in-250) when speaking to reporters last week.
“We'd say this generally correlates with our own experience tracking both in the UK and Ireland,” Jackson said.
“This ESRI report, I haven’t seen it myself, I understand that it seems to suggest that gambling is a bigger societal issue than our real-life experience or any of independent research that we've seen would indicate,” he added.
Asked for his reponse to Jackson, Lunn said: “The low figure quoted by Mr Jackson from a UK survey is old. In fact, the UK Gambling Commission’s most recent estimate of problem gambling, based on a different method, is much higher and similar to ours.
“The issue of different survey methods giving different results is addressed in two ESRI reports published in 2023. Our conclusion, as independent researchers, is that the higher figures are more likely to reflect reality, because the survey methods used gave people anonymity. When responses are anonymous, people are more willing to admit how much they gamble.”