Should Welsh, Scottish, and Northern Irish MPs be entitled to vote on legislation which only affects England?

The issue of English votes for English laws (EVEL), commonly known as the West Lothian question, refers to whether MPs from Scotland, Wales and Northern Ireland should be able to vote on matters that affect only England. Some argue that because of the Barnett formula, issues in England greatly affect Scotland, Wales and Northern Ireland. The Barnett formula automatically adjusts levels of public spending in Scotland, Wales and Northern Ireland based on the population of each nation and which powers are devolved to them.