I survey the evidence on patterns in U.S. high school graduation rates over the period 1970-2010 and report the results of new research conducted to fill in holes in the evidence. I begin by pointing out the strengths and limitations of existing data sources. I then describe six striking patterns in graduation rates. They include stagnation over…

Two facts have become clear since passage of the Workforce Investment Act in 1998. First, when low-skilled individuals increase their basic skills, these higher skills pay off in the labor market in the form of higher employment and earnings. Second, these earnings increases are typically modest and fall short of what people need to become…