On which issue do the authors most disagree

2. The value of high voter turnout

Explanation:

Both authors agree that generally half the population votes but the first one believes that this number is too high and the second believes it is not high enough.

They therefore disagree on the value of a high voter turnout with the first arguing that only the truly informed should vote which is a small section of the population while the second wants many more people to be voting and so supports mandatory voting.

an expansion is one of two basic business cycle phases; the other is contraction. the transition from expansion to contraction is a peak, and the changeover from contraction to expansion is a trough.