While unions can help give workers a voice in negotiations with their employers, they also work to protect members from the pressures of others in the workforce and restrict overall labor force participation—all of which undermines self-reliance. As with other measures of labor market rigidity, unionization rates have little relationship with the income of a country. The measure shows different choices within countries of similar income. Unionization rates are low in the US and Mexico (close to 15% and below), though it’s worth noting that our measures don’t account for the strength of unions (which we understand to be strong in France, for example). Unionization rates are very high in Italy, Russia and Argentina (35% and higher). This is one of the few measures on which China ranks lower, with a unionization rate near 30%.