Each year, an estimated 2,000 people drowned on their migrant’s journey from Africa to Europe (The Economist 2005) and many more on other routes. Not only is crossing borders illegally a dangerous operation but it also entails very high financial costs. For border crossings such as from Mexico to the US, human smugglers can charge up to $4,000, while trans-pacific crossings of Chinese immigrants to the US cost above $35,000 in the mid-90s and have since increased sharply.
With estimated revenues of around $5 billion a year in the US and €4 billion in the EU (Padgett 2003), people smuggling is a lucrative business.Emmanuelle Auriol and Alice Mesnard's proposal is for destination countries to sell the right to immigrate to them on the open market. It's just basic economic reasoning;
Pity they aren't advising M. Hollande. It might be a way to replace all those new retirees he's just enabled.