The federal minimum wage of $7.25 an hour is obviously too low. So is the Democrats’ proposed increase to $10.10 an hour by 2016. If the minimum wage had merely kept pace over time with inflation, average wages or productivity growth, it would be between $11 an hour and $18 an hour today.

It would also be higher if it kept pace with what other advanced economies are prepared to pay.

Last week, the lower house of Parliament in Germany voted to set a nationwide minimum wage of 8.50 euros an hour, about $11.60, effective in 2015. The upper house is expected to approve the measure this week. With the passage of it, Germany, France, Britain and the Netherlands have or soon will have higher minimum wages than the current and proposed minimums in the United States, and only six countries in the European Union will be without a statutory minimum wage: Austria, Cyprus, Denmark, Finland, Italy and Sweden.

The expected German minimum is noteworthy not only for its level. For nearly 70 years, most wages in Germany have been set by agreements that are collectively bargained between unions and employers. In recent decades, however, and particularly following reunification with the former East Germany, the share of workers who are effectively covered by union agreements has fallen. By enacting an adequate minimum wage, the German Parliament is responding constructively to that development, because a solid wage floor ensures that economic growth is broadly shared even by those who fall outside the collectively bargained framework.

In a global economy that has long relied on low wages to lift profits, a relatively high minimum wage in Germany would also reflect a growing consensus there that a high-wage, high-productivity economy is, in fact, an advantage in stabilizing the nation economically and socially.