light bulb

How many economists does it take to change a light bulb?
None. If it really needed changing, market forces would have caused it to happen.

How many tax advisors does it take to change a light bulb?
"In the summer there is a tax deductible convention in Hawaii, dealing exactly with this issue."

How many accountants does it take to change a light bulb?
Two, one to change the light bulb and one to check that it was done within the given budget.

How many bankers does it take to change a light bulb?
Four. One to hold the bulb, and three to try and remember the combination.

How many stockbrokers does it take to change a light bulb?
Two. One to take out the bulb and drop it, and the other to try and sell it before it crashes (knowing that it’s already burned out).