"however from 1912 they began to acquire shipyards in elsewhere in the UK due to political instability in Ireland."Belfast was highly industrialized, Harland & Wolff were one of the largest shipbuilders in the world however from 1912 they began to acquire shipyards in elsewhere in the UK due to political instability in Ireland. Belfast needed to stay part of the UK for economic reasons, the farmers in the rest of Ireland couldn't care and would rather be ruled from Dublin. The north produced a profit that subsidised the rest of Ireland. The northeners had a concern that it was 'Rome Rule' and that the Catholics need ships to put together the Papal states again. By the middle of 1914 the sourthern hold outs had largely given up on a single Ireland.
Political instability as in potential civil war, rather than the idea of Ireland becoming Independent, or Home Rule that could affect the economic conditions (outside of Britain economy like a dominions or higher taxes)?
"The north produced a profit that subsidised the rest of Ireland."
Does this mean that in a Home Rule scenario Ireland would have the power to tax (the devolved Scottish government does not have the power to tax), and they would take the northern Irish taxes and redistribute them more in southern Ireland at a higher rate than happened when southern Ireland was part of the UK?
"The northerners had a concern that it was 'Rome Rule'"
How does that translate to policy and law?