التجارب
دفع المشاركون أكثر لصناديق جمّعوها بأنفسهم.
الآلية
الجهد يعزز الشعور بالكفاءة والملكية.
الحدود
يختفي الأثر إن لم يكتمل العمل.
الأسئلة الشائعة
- ما الأثر ببساطة؟
- ما نصنعه بأيدينا يبدو أثمن.
- هل يحدث دائماً؟
- لا، يشترط إكمال العمل بنجاح.
تاريخ مراجعة المصادر: 2026-10-26
المراجع
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