noun
competitive lobbying; rivalry in campaigning
Describes a situation where multiple parties engage in intense lobbying or petitioning, often in political or organizational contexts, competing for influence or a favorable decision.
予算獲得のため、各団体が陳情合戦を繰り広げた。
Various groups engaged in competitive lobbying to secure budget allocations.
国会周辺では連日、陳情合戦が行われている。
Around the Diet building, competitive lobbying takes place every day.
陳情 is the act of petitioning or lobbying itself, while 陳情合戦 emphasizes the competitive, battle-like aspect of multiple parties lobbying against each other.
ロビー活動 is a more general term for lobbying activities, often used in political contexts, but lacks the competitive 'battle' nuance of 陳情合戦.
Compound of 陳情 (petition, lobbying) and 合戦 (battle, engagement), literally 'petition battle'. The exact historical derivation is uncertain, but the term likely emerged in modern political discourse to describe intense lobbying competition.