The Biden Administration is proposing a major infrastructure plan to boost the competitiveness of the US economy against Chinese economy. See "Biden: US needs to 'step up' with infrastructure plan, or China will 'eat our lunch'" published by Yahoo Finance on February 11, 2021. How does an improvement in infrastructure, which produces a nontradable local service, make the U.S. economy more competitive in international markets where tradable goods are exchanged in the long run?