The transatlantic trade and investment relationship is massive. Annual trade flows in the neighborhood of $1 trillion and cross-border direct investment stocks totaling $3.7 trillion speak to a highly interdependent transatlantic relationship. Nevertheless, tariffs and other non-tariff barriers to trade remain prominent impediments to deeper integration. Negotiations to achieve greater transatlantic integration were launched in 2013, but a successful conclusion to the Transatlantic Trade and Investment Partnership (TTIP) has thus far proven elusive.

On this page you will find Cato analyses of various aspects of the TTIP negotiations, transatlantic trade disputes, and other issues affecting the transatlantic trade and investment relationship.

More on Trans-Atlantic Trade


The TPP Is Dead. Spare the TTIP.

By Simon Lester. Real Clear Policy. February 8, 2017.

When Opposites Attract

By Ryan Bourne. U.S. News & World Report (Online). January 27, 2017.

Germany’s Tea Party Troubles

By Christopher A. Preble. National Interest (Online). September 28, 2016.

Cato Studies

One Year into the TTIP Negotiations: Getting to Yes

By Simon Lester. Free Trade Bulletin No. 59. September 29, 2014.

Opening the Skies: Put Free Trade in Airline Services on the Transatlantic Trade Agenda

By Kenneth J. Button. Policy Analysis No. 757. September 15, 2014.

A Compromise to Advance the Trade Agenda: Purge Negotiations of Investor-State Dispute Settlement

By Daniel J. Ikenson. Free Trade Bulletin No. 57. March 4, 2014.


Six Degrees of Integration: How Closely Will the TTIP Integrate the Transatlantic Market?

Simon Lester. European Yearbook of International Economic Law. Vol. 7. July 17, 2016.

Financial Services in the TTIP: Making the Prudential Exception Work

Inu Barbee and Simon Lester. Georgetown Journal of International Law. Vol. 45. No. 4. 2014.

The Challenge of Cooperation: Regulatory Trade Barriers in the Transatlantic Trade and Investment Partnership

Simon Lester and Inu Barbee. Journal of International Economic Law. Vol. 16. No. 4. December 2013.