Brown and white eggs, what's the difference?

Why are brown eggs more expensive than white ones, even though the two types taste the same and have identical nutritional value?


After looking through some web-sites, I've found out, that there's no difference between brown eggs and white ones (except for colour, of course :). The colour of the shell is determined by the breed of hen and it doesn't affect an egg's nutritional value or taste. But what is important - hens that produce brown eggs are usually larger than those who produce white ones -> they need more food. So farms spent more on them and that is the only reason the prices on brown eggs are higher.