Now, faced with severe budget constraints and having to cut down public spending, the Government introduced payment in highways where people were already used not to pay.
But given the protest of local populations, that were using arguments put forward some years ago by the same Government, exemptions and discounts were created, based on household distance to the highway.
From a pure economics viewpoint, price discrimination, as this is the case here, can be welfare increasing - translating from our jargon, it may be good for society that different prices apply to different people.
The problem is when pure economics meets political economy - by having differential treatment as a rule, everyone will claim and press the Government to have particular exceptions - thus transforming tolls in highways into a bargaining game.
I wonder what will be the end result, especially if in highways where no price discrimination exists populations start demanding application of the same rules.