Research Agreement
Research Agreement (development) in the Stellaris encyclopedia: Research Agreements are diplomatic treaties that grant participating empires Research bonuses for Technologies already possessed by their counterpart, making them particularly valuable for accelerating scientific progress.
Research Agreement in the game's words
The encyclopedia entry as the game shows it in its tooltips; underlined words open their own entry or page here.
Research Agreements are diplomatic treaties that grant participating empires 
Research bonuses for Technologies already possessed by their counterpart, making them particularly valuable for accelerating scientific progress.
Research Agreements can be established through diplomacy and are often included in broader cooperative alliances or Federation arrangements.They are proposed in the Contacts tab of the 
Contacts View.
More in Development
Source: common/game_concepts (concept_research_agreement, also concept_research_agreements) and localisation/english, Stellaris Cygnus v4.5.2 (9776).