We can argue about what's "fair" all day, but "inexpensive" is more objective: some taxes hamper more economic activity than others. A $1 tax on a stock trade will reduce exactly $1 of economic activity. It's so expensive, it's basically pointless. A land value tax, on the other land, is almost free. (And in some cases, negative!)

Most taxes fall somewhere between these two extremes, but corporate income taxes are one of the most expensive, which is why economists aren't big fans of them.

Countries like Ireland and the Netherlands are nothing more than tax avoidance puppets of a few big companies. And the sad thing is that their governments think it's good what they do while it's a downwards spiral instead.