This was probably working while the Swiss people were working and buying their products, but in Zurich Swiss people do banking and non-Swiss people engineering

This was probably working while the Swiss people were working and buying their products, but in Zurich Swiss people do banking and non-Swiss people engineering (and the number of non-Swiss people grow exponentially, now maybe 1% of people in Zurich is a Googler). They usually go to the German border for weekend shopping instead of buying the expensive Swiss products.