Notes, Comments and Preliminary results Jun 02 2020 Yizhaq Minchuk   Rent-seeking contest with two forms of sabotaging efforts   Abstract  Contact Information  Citation  Full Text  -  Note   Nov 06 2018 Yizhaq Minchuk , Baruch Keren and Yossi Hadad   Return on Investment in Contest   Abstract  Contact Information  Citation  Full Text  -  Note   Jul 28 2014 Yizhaq Minchuk   Aggressive Bidding of Weak Bidders in All-Pay Auction   Abstract  Contact Information  Citation  Full Text  -  Note   Jun 03 2013 Yizhaq Minchuk   Low and High Types of Bidders in Asymmetric Auctions with A General Utility Function   Abstract  Contact Information  Citation  Full Text  -  Note