Is Switzerland balanced? For the most part yes. The Germanic part yes, the Italian part mostly yes. The French part? Heck no! Go Figure...
The reason why Switzerland has balanced budgets for the most part is because of the unique way they solve problems.
Let me illustrate...
I live near Zurich and we are getting a new highway systems. This highway system has taken 10 years to realize. It does not include the time taken to do the planning. I am talking 10 years to do the physical labor. For other countries this would have taken about 2 years.
So you ask, why 10 years when 2...
Simple economics...
The entire project costs about 2 billion CHF, and when I stretch it over 10 years it means I will be paying about 200 million per year. If I were to realize it in 2 years I would need to pay about a billion a year.
200 million is quite a bit easier to digest than a billion. Yes by stretching you add costs due to certain inefficiencies. But when you do the math of having to issue bonds and then pay them it is better to stretch the payments. For example by squeezing everything in such a short time you are adding an urgency penalty and when things get out of whack with respect to timing, costs increase. By stretching you really don't have that problem.
For another example of this look at the Gothard Train Tunnel system. 20 years! The interesting thing is that some workers started with that project and when it is done they will retire.
The problem with waiting this long, is that well it is LONG...
BUT by waiting this long, once the construction is done, the payments are done, and you have no debt.
Rather clever actually...