Patrick Walsh has spent a lot of time weighing up the Irish economic model of late. He believes the state’s decision to surrender the 12.5 per cent corporate tax rate is a generational event, stripping the country of a core component of its FDI strategy. But he also believes it is an opportunity to reimagine a new model for the decades to come. “It is more than an opportunity. I think it’s an economic imperative,” he says. Given his background, it is hardly surprising that he believes the future model should be built around start-ups and innovation driven businesses. After…