Read our proposals here: Success by Design

One of the key questions in any debate about a New Ireland is whether it would deliver better lives for people across the island: better jobs, higher wages, stronger public services and more secure futures. This paper rejects the simplistic arguments that dominate much of the public debate, between claims of an automatic economic dividend and assertions that Northern Ireland is inherently unaffordable. Economic outcomes are not set in stone; they are shaped by policy choices, investment decisions, institutional design and preparation, as well as wider global forces.

The past three decades demonstrate this clearly. Northern Ireland and the Republic began the 1990s from broadly comparable economic positions, yet their trajectories diverged sharply in the period after the Good Friday Agreement. While the South experienced sustained growth and rising living standards, Northern Ireland failed to translate peace into sustained economic renewal. This divergence was not inevitable and cannot be blamed on partition or a troubled history alone. It reflects choices made about skills, infrastructure, innovation and governance – and it can be changed through a different set of choices. This paper argues that Northern Ireland should not be viewed as a burden in any future settlement, but as a potential contributor to a stronger, more balanced and more resilient all-island economy. Better integration of infrastructure, labour markets, enterprise support and regional development offers tangible benefits for both jurisdictions. Crucially, convergence in productivity, wages and employment would reduce long-term fiscal pressures and strengthen the overall tax base of the island economy. At the same time, the case for integration must be understood within a wider need to build an economy that is socially inclusive, environmentally sustainable and resilient to future shocks.

Institutional design is crucial within this conversation – indeed, no serious debate on the economy of a New Ireland can take place without considering what shape it will take. If viewed purely from an economic perspective, the SDLP believes that a unitary state offers the strongest platform for convergence, growth and resilience across the island. Greater policy coherence, economies of scale in administration, and aligned approaches to infrastructure, skills and enterprise would reduce fragmentation costs and improve long-term economic performance. This economic assessment does not pre-judge wider constitutional questions around identity, consent and democratic legitimacy, but reflects the evidence that institutional coherence matters for productivity, investment and regional balance.

Finally, this is not a conversation only about the future. The paper sets out a series of practical, no-regrets actions that can be taken now to strengthen economic ties and improve outcomes in the present, alongside preparatory work to plan responsibly for deeper economic integration in the future. A New Ireland, if it is to succeed economically, must be built deliberately.