1.
carrot and stick; reward and punishment; the soft and hard approach
A strategy of using both incentives (rewards) and deterrents (punishment) to achieve a desired outcome. Literally 'candy and whip.' Equivalent to the English expression 'carrot and stick.'
飴と鞭を使い分ける。
To use the carrot and the stick appropriately.
あの上司は飴と鞭の使い方がうまい。
That boss is good at using the carrot and stick approach.
子育てでは飴と鞭のバランスが大切だと言われている。
They say the balance between reward and punishment is important in child-rearing.
Literally 'candy and whip.' The expression is thought to derive from Bismarck's domestic policy approach (Zuckerbrot und Peitsche, 'sugar bread and whip'). Common collocations: 飴と鞭を使い分ける (to skillfully alternate between reward and punishment), 飴と鞭の政策 (carrot-and-stick policy). Used in contexts of management, parenting, education, and politics.