Ship propulsion and Tankers, barges and fuel trucks

Energy flows from tankers, barges and fuel trucks to ship propulsion; their prices have moved together.

Ship propulsion (energy) and Tankers, barges and fuel trucks (energy): 2 relationships.

How they are linked

1. Energy flow

Physical flow · 6% of flow · Tankers, barges and fuel trucks → Ship propulsion

Bunker barges refuel ships in port.

• 6% of Tankers, barges and fuel trucks's energy goes this way

2. Price link: shipbuilding

Cost and price · Weak · Both ways

New tankers come from shipyards whose prices follow order books, steel and labour. The shipbuilding proxy is a US series that barely tracks world freight, with monthly moves correlating at 0.07, so treat this as a weak link.

• 0.07 monthly change correlation
• 0.19 12-month change correlation
• 1.86 fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.