transgression

"PREDICTABLY IRRATIONAL" は何故人間が不正直な行動を取るのかについて 分析をしています。
This is my take. We care about honesty and we want to be honest. The problem is that our internal honesty monitor is active only when we contemplate big transgressions, like grabbing an entire box of pens from the conference hall. For the little transgression, like taking a single pen or two pens, we don't even consider how these actions would reflect on our honesty and so our superego stays asleep.
"transgressions" は他人の敷地に無断で入る事を意味しているとおぼろげに覚えていますが、引用した個所の意味はちょっと違う様です。でも、上の文章の全体の意味はだいたい分かります。　しかし "transgression" のここでの意味を確認するために辞書を引きます。
・Cambridge Advanced Learner's English Dictionary: to break a law or moral rule; Those are the rules, and anyone who transgresses will be severely punished.
・WordNet:
1. the action of going beyond or overstepping some boundary or limit
2. the act of transgressing; the violation of a law or a duty or moral principle ("The boy was punished for the transgressions of his father")
これで "PREDICTABLY IRRATIONAL" は読み終えましたが、行動経済学は結構面白い学問だと思ったので他にも適当な本があれば又読んでみたい。