That’s the title of an opinion piece in Finance and Development by former CEA member (2025-26) and UW Madison economics professor Kim Ruhl:

The world is now reevaluating the role of economic interconnectedness in global affairs, mindful that more interconnection means more dependencies that adversarial nations can leverage to get their way in other areas of international relations. Resilient economies must be the response. A country must have access to the resources it needs to fight a protracted war. It must have a reliable supply of medicines, microchips, critical minerals, and other vital inputs, regardless of changing global alignment. And it must be able to rapidly increase production in response to an emergency such as COVID-19.

In the United States, President Donald Trump’s administration is working to de-risk supply chains and build domestic capacity in key industries to enhance economic resilience. This implies a modification of the policy of near unconditional openness that characterized the past.

These policies will, in some cases, reduce economic efficiency relative to a world in which we ignore geopolitical risk. These are the necessary costs of resilience. Economic modeling that recognizes the trade-off can guide policymakers. The challenge is to minimize the costs and ensure that crude protectionism is not enacted in the guise of national security.

The piece continues:

Strategic state direction, subsidies, financial repression, protectionism, and regulatory arbitrage are political forces, not economic fundamentals. These policies are particularly dangerous when deployed by large adversarial countries. Economic thinking must account for more of these forces, and economists can increase their engagement with them.

Policymakers need frameworks to analyze the strategic considerations of their choices. Does a policy build leverage for the US or vulnerability? How can we identify which goods should be controlled for national security reasons while avoiding unnecessary protectionism? Which goods must be sourced domestically, and which can be imported from allies? How do we restart a domestic industry as efficiently as possible? Perhaps most important is the development of tools that clearly identify the trade-offs between economic efficiency and strategic objectives.

Economists already have many of the analytical tools needed, and these can inform decision-makers about the trade-offs and unintended consequences of policies. Tariffs and sanctions are perhaps the most studied policy levers, but price floors, stockpiles, export restrictions, and investment agreements are just some of the relevant policy instruments available. Tax policy, industrial policy, and regulatory infrastructure may appear to be domestic policy, but they are instruments of economic statecraft as well, and should be studied in that context.

The entire piece is here.