Modern designs tend to have a very wide beam and a flat bottom aft, to provide buoyancy preventing an excessive heel angle and to promote surfing and planing.
Both these stiffen the yacht and allow more sail to be carried in stronger winds. Depending on the type of race, such a yacht may have a crew of 15 or more.
The Power of Forest
Adam Smith’s famous book, The Wealth of Nations, published in Great Britain in 1776, distinguished between the outputs of what he termed “productive” and “unproductive” labor.