An unemployment rate of below 5% isn't very achievable outside of extremes like slave labour; in a healthy economy, there will be people moving from job to job as they find a good fit; this turnover should show up as unemployment. If it doesn't, it either means huge numbers of people are "trapped" inside corporations, or the unemployment statistics are not very comparable. 5% in most Western economies is considered a very tight market with potential problems of overheating and wage inflation. I'd put my money on a different accounting method.
An unemployment rate of below 5% isn't very achievable outside of extremes like slave labour; in a healthy economy, there will be people moving from job to job as they find a good fit; this turnover should show up as unemployment. If it doesn't, it either means huge numbers of people are "trapped" inside corporations, or the unemployment statistics are not very comparable. 5% in most Western economies is considered a very tight market with potential problems of overheating and wage inflation. I'd put my money on a different accounting method.