[1] http://www.bloomberg.com/news/articles/2015-05-19/iowa-spent...
[1] http://www.bloomberg.com/news/articles/2015-05-19/iowa-spent...
Sounds like 1300 jobs paying 46K, double the local average, over the course of 6 years.
From a "paying taxes to buy higher salaries" point of view this is 1300 * (0.5 * 46K) * 6 ~= $180M. Sounds like a positive NPV transaction. But... How much of the increase does the city and state actually capture in Taxes? Let's call it 15% between city, state, local and sales. (This is very fuzzy math) Then you get 180M * 0.15 ~= 27M.
In the end it sounds like the city and state of Dubuque did a wealth transfer from taxpayers to a subset of local employees, many of whom are now jobless and will need to go back to $23K jobs or move.
These types of arrangements frequently end poorly. If the local market won't bear a certain wage rate, it's hard for one-off tax rebates to fix things. You need to go deeper - change the entire tax regime, improve the education system, etc.
Cringely [1] opines on this too.
[0] http://www.bloomberg.com/news/articles/2015-05-19/iowa-spent...
[1] http://www.cringely.com/2012/04/18/somethings-rotten-in-dubu...
And if that means the next Dubuque company needs to be offering million dollar salaries to engineers to get commit themselves out there - since there would be no other opportunities and you would be stuck, so you better have a massive nest egg after five years - then so be it.
Can't blame someone for taking that risk.