This paper develops the concept of transience of (in)formality to refer to the intersection of formal and informal negotiating procedures in the WTO decision-making system. It argues that both formal and informal negotiating processes are essential for delivering negotiating outcomes in the WTO. Particularly, the article assesses how informal negotiating practices emerge within the WTO formal framework and align with it. The analysis highlights how negotiating practices (re)shape existing norms, both formal and informal, adapting the WTO to overcome challenges and meet current needs. It also disputes legal formalistic perspectives that permeate trade literature and offer limited accounts of Members' agency in the WTO. The paper uses the Joint Initiatives as a case study to illustrate the convergence between formality and informality and a possible way ahead for the WTO negotiations. By broadening the understanding of law-making, it contributes to the discussion on WTO reform. It provides alternatives that reflect the reality of WTO negotiations and underlines the institution's relevance.
