Very interesting stuff, but I'm always very skeptical of claims along the lines of "Every x dollars spent on [good/service] generates y additional [jobs/dollars/other good stuff]." First, I'm highly dubious of the ability of economists to isolate such complex relationships down to single-single input, single-output relationships. More importantly, there's never any analysis of opportunity costs to provide context: what if that same money, spent on something else, provided an even bigger economic benefit?