Karim, M., Pourmoghadam, A., Mohhamadrezazadeh, N., Rahnama, A., & Sardar Shahraki, A. "Study of Moral Hazard Phenomenon of Barley Insurance Plan in Khorasan Razavi", Agricultural Economics and Development, 21, 4, 2014, 103–122. doi: 10.30490/aead.2014.58720