Little research currently exists on a vulnerability line that distinguishes the poor population from the population that is not poor but that still faces significant risk of falling back into poverty. This paper attempts to fill this gap by proposing vulnerability lines that can be...

Data show that middle-income households have continued moving down, and less so up, the income distribution in the United States since the 1970s-a phenomenon that is often referred to as the polarization or 'hollowing out' of the income distribution. While the level of income polarization is...

"America is becoming a class-based society. It is now conventional wisdom to focus on the wealth of the top 1 percent-especially the top 0.01 percent-and how the ultra-rich are concentrating income and prosperity while incomes for most other Americans are stagnant. But the most important,...

Data show that middle-income households have continued moving down, and less so up, the income distribution in the United States since the 1970s-a phenomenon that is often referred to as the polarization or 'hollowing out' of the income distribution. While the level of income polarization is...