Static ModifiersLStatic Modifier40 yearsLarge Tributary Shipmentschi_large_tributary_envoyShow on the map →ModifiersMiddle Kingdom Tribute Received Modifier+50%Where it is appliedSourceWhereDurationTributary Missions to Target Countryoption 140 yearsConnectionsGranted by 1Tributary Missions to Target Country40 yearsOption 1Removed by 1Unsustainable Tributary MissionOption 1Definitionmain_menu/common/static_modifiers/country.txt:1973▾game_data = {category = country}tribute_payment_received_modifier = 0.5History