Union strength is capable of boosting wages for workers at the low end of the income scale. Even when differences in education and industry type are accounted for, workers in right-to-work states have a greater probability of earning close to the minimum wage than workers in states with...

How members of Congress vote on increases in the minimum wage is a function of several factors, most notably party affiliation and constituent interest. But also among those factors is the existence of "right-to-work" laws in the representative's state and the presence of labor unions,...