"Lost in Transmission: Bureaucracy, Noise, and Communication in International Politics" - by CWP alum Tyler Jost

May 17, 2025

Effective communications are often the difference between whether states go to war or remain at peace. Yet decision-makers in one state frequently fail to understand what decision-makers in another are trying to say. Under what conditions do international communications fail? We argue that division of labor within government can degrade international communication by introducing transmission noise, which occurs when bureaucracies dispatch signals to foreign countries that deviate from the leader's intended meaning. The structure of bureaucratic institutions—the formal and informal rules and procedures defining how leaders and bureaucrats interact—affects the severity of transmission noise. Open institutions reduce transmission noise by improving information-sharing between leaders and bureaucrats; closed institutions increase transmission noise by impeding information-sharing and bureaucratic oversight. In short, patterns of communication within states shape communication effectiveness between states. We evaluate the theory by analyzing bureaucratic signaling processes before and after institutional reforms in India in the mid-1960s. For the cases on India's negotiations with China in 1962 and with Pakistan in 1965, we leverage sources from six countries to illustrate how sender-side institutions can degrade communication. The theory and findings emphasize the important but relatively overlooked roles that transmission noise and bureaucracy play in international communication.

Don Casler, Tyler Jost Author and Article Information International Security (2025) 49 (4): 160–201. https://doi.org/10.1162/isec_a_00511


Tyler Jost is Assistant Professor of Political Science, International & Public Affairs and Watson Institute Assistant Professor of China Studies. His research focuses on national security decision-making, bureaucratic politics, and Chinese foreign policy. Dr. Jost’s current book project examines domestic institutions designed to decide and coordinate national security policy, such as the U.S. National Security Council. Dr. Jost completed his doctoral degree in the Department of Government at Harvard University. He has held postdoctoral fellowships in the International Security Program at the Kennedy School of Government, as well as in the China and the World Program at Columbia University. His research has been supported by the Smith Richardson Foundation, the U.S. Institute of Peace, and the Fairbank Center for Chinese Studies.


Photo Credit: https://direct.mit.edu/isec/article/49/4/160/130814

Tyler Jost is Assistant Professor of Political Science, International & Public Affairs and Watson Institute Assistant Professor of China Studies. His research focuses on national security decision-making, bureaucratic politics, and Chinese foreign policy. Dr. Jost’s current book project examines domestic institutions designed to decide and coordinate national security policy, such as the U.S. National Security Council. Dr. Jost completed his doctoral degree in the Department of Government at Harvard Univers