in Indonesia by using various demographic, socio-economic, psychographic and motivational/situational characteristics … Islamic charities in the modern marketing perspective, especially in Indonesia. This study, therefore, fills the gap in the …

riding. There is also a general gap in the current literature on Islamic economics that the issues of zakat and charity have … show how zakat can function as a unique solution to the free-rider problem in voluntary charity. The author's argument is …. Findings - Zakat solves both the free-rider problem in ordinary charity and the coordination problem between members in a large …

Deutschland Motive freiwilliger Arbeit Freiwillige Arbeit, Religion und Religiosität Die Zielgruppen Dozierende und Studierende …