No, in Spain there is a large underground economy and none of this happens.
Discussion
good for you!
sadly not where I live. Here we take more advantage from gray markets. Mostly for services, goods are basically limited to strictly "illegal" things like drugs.
E.g. it's not that hard to find a contractor to build your house and circumvent taxes, but they can't do it with material. They would quickly endup in jail (asuming they would be able to get it somewhere)
It's AFAIK of course, I can't know all the channels...
In Spain, if it weren't for the underground economy (black markets), there would have been a revolution because the real unemployment rate is around 30%, compared to the 12% figure touted by the government.
Interesting contrast, we officially have 4% but in reality it's near 0. Who doesn't work doesn't want to (or objectively can't)