We introduce reward money into the provision point mechanism with refunds. Reward money is distributed among the contributors in proportion to their contributions only when the provision point is not reached. In environments without aggregate uncertainty, the provision point is always reached in...

We modify the provision point mechanism by introducing reward money, which is distributed among the contributors in proportion to their contributions only when the provision point is not reached. In equilibrium, the provision point is always reached as competition for reward money and preference...

We introduce refund bonuses into the provision point mechanism. If a total contribution is less than the provision point, each contributor receives not only his contribution refunded but also a refund bonus the size of which is proportional to the contribution made. However, because of...