The permitted spend is up to €75 per day and €900 per month.
The default limit on lotto spending must be lowered, according to researchers.
Currently, the maxmimum permitted spend is €75 per day and up to €900 per month.
Dr Frank Haughton, who contributed to the research, says the lottery is a 'stealth tax on the poor and desperate,' amid the current cost-of-living crisis.
A recent ESRI report found over 250,000 people show evidence of problematic gambling.
The National Lottery generated over €870 million in sales last year, with almost one in five playing online.
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