How many Jones act ships operate on the coastal United States (excluding Puerto Rico/Hawaii/Alaska/Lakeboats)? How many shipping jobs are from the MSP in comparison?
it seems like a spiraling problem to me:
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Not enough ships built to make better shipbuilding techniques viable
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This keeps the cost high for building them making rail/truck the answer for most cargo since it is cheaper
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This causes less cargo for ships and less demand for ships
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This lowers the demand to produce ships making production of them more expensive
Thus this is why we have lakeboats that they’d rather swap out entire engines and even engine systems than build a new hull until the old hull essentially cracks in half (and maybe they keep running it even then)
I’m not saying getting rid of the Jones Act would fix this, but this issue isn’t going to get better without some economic or political change.
I’d suggest developing a subsidy to innovate US shipyards, or at least making it a requirement to building a Jones Act ship to use robotic welding and automation in construction… jump start the US shipyards where they can produce cheap vessels and this problem would be solved with mostly everyone happy