That question is a tad bit more subjective than "F = ma" (an economist from a Marxist school of thought would probably disagree that is is entirely clear-cut),

That question is a tad bit more subjective than "F = ma" (an economist from a Marxist school of thought would probably disagree that is is entirely clear-cut), and it would depend entirely on the specific way it was asked and exactly what counted as an "agree". Professionals will tend to hedge their answers when they can conceive of any kind of scenario that would contradict an absolute like "A ceiling on rents reduces the quantity and quality of housing available.". A ceiling of 2 trillion dollars/sq. foot would likely not impact on the quality or quantity of housing in the US, to make up a wild counter-claim off the top of my head.