This article on the core front page a few weeks ago also shows the secondary and tertiary benefits of manufacturing locally, the money recirculates in the local economy:
A local ‘chamber of commerce’ style TV ad from a few years ago followed a 2$ coin, showing how if it is spent here, the local economy benefits: you buy something from the shop down the road, he then buys a coffee from a neighbouring shop, the coffee shop then buys supplies from the factory you work at etc.
I found this study that puts a dollar value to buying locally, which I expect correlates a lot to manufacturing locally:
”In a study comparing the economic impact of ten Andersonville businesses and their chain competitors, it was found that:
Locally-owned businesses generate a substantial Local Premium in enhanced economic impact.
For every $100 in consumer spending with a local firm, $68 remains in the Chicago economy.
For every $100 in consumer spending with a chain firm, $43 remains in the Chicago economy.
For every square foot occupied by a local firm, local economic impact is $179.
For every square foot occupied by a chain firm, local economic impact is $105.”