New research shows America’s upper-middle class is growing, while the country’s core middle class is shrinking. WSJ’s Rachel Louise Ensign explains the differences between the two groups.

When you ask Americans whether they’re middle class, most will say yes. In fact, according to a Pew Research survey, only 10% of Americans identify as lower class, and just 1% identify as upper class.

LAS VEGAS (KLAS/Nexstar) – As housing, transportation and everyday expenses continue to fluctuate, the definition of middle-class stability is evolving. For some families, it may feel like the ...

"The middle class is shrinking" might be the assertion of the decade. Progressives and populists alike use it to justify nearly all government interventions, from tariffs to minimum-wage hikes to ...

A new study finds the share of families in the upper-middle class has nearly tripled since 1979.