America's getting a valuable education about unions

Why? Because unlike in the private economy, a public union has a natural monopoly over government services. An industrial union will fight for a greater share of corporate profits, but it also knows that a business must make profits or it will move or shut down. The union chief for teachers, transit workers or firemen knows that the city is not going to close the schools, buses or firehouses…

Thus the collision course with taxpayers. Public unions depend entirely on tax revenues to fund their pay and benefits. They thus have every incentive to elect politicians who favor higher taxes and more government spending. The great expansion of state and local spending followed the rise of public unions…

Notice, too, how fiercely the public unions are willing to fight for collective bargaining power even if it means public job layoffs. Without Mr. Walker’s budget reforms, Wisconsin will have to begin laying off thousands of workers as early as today. The unions would rather give up those jobs—typically for their younger members—than give up their political negotiating advantages. They know some future Governor or legislature will get those jobs back, as long as they retain their inordinate political clout.