How Does Reducing Shipping Costs Affect U.S. GDP?

Voltic's retrofit approach aims to lower vessel operating costs by electrifying existing cargo ships without replacing their underlying infrastructure. Lower shipping costs can support U.S. economic output by reducing the price of imported inputs, helping exporters compete, and leaving businesses and households with more purchasing power.

An illustrative calculation shows the possible scale. If a 10% decrease in trade costs raised real income by 0.15% to 0.25%, a proportional 25% decrease would imply a 0.375% to 0.625% gain. Applying that range to an assumed U.S. GDP base of $29.18 trillion produces roughly $109 billion to $182 billion, commonly rounded to $110 billion to $180 billion.

The calculation is not a Voltic projection. It assumes a linear relationship, treats broad trade costs and shipping costs as interchangeable, and applies an economy-wide elasticity to one country's GDP. Actual results would depend on how much of the cost reduction reaches customers, which trade lanes benefit, and how firms respond.

The requested 2023 NBER source for the 0.15% to 0.25% elasticity could not be verified. NBER research does support the broader conclusion that trade raises U.S. income, but the specific elasticity should not be published as an NBER finding without the original paper. The $29.18 trillion GDP base also requires confirmation in the relevant BEA table.