<p><p>Income Tax and National Insurance are now sufficiently similar that merging them appears to be a plausible option, yet still sufficiently different that integration raises significant difficulties. This paper surveys the potential benefits of integration - increased transparency and reduced...</p></p>

I use within-firm, plant-level data combined with geographic information on firms' overseas operations to examine how investment in low-wage economies affects firms' home-country operations. To remain close to theory I focus on changes in firms' organisational and industrial structure driven by...