Since GDP growth in the US is dependant on medical care and on new car sales, it probably decreased it on the short term.
A sudden decrease in car crash would probably decrease the GDP the year it happen, then the fact that less people are dying or disabled would probably increase it in the long run. It will probably have the same effect here.
A sudden decrease in car crash would probably decrease the GDP the year it happen, then the fact that less people are dying or disabled would probably increase it in the long run. It will probably have the same effect here.