 The deadweight loss due to monopoly pricing would then be the economic benefit foregone by customer with a marginal benefit of between $0.10 and $0.60 per nail.The monopolist has "priced them out of the market", even though their benefit exceeds the true cost per nail.Conversely, deadweight loss can also arise from consumers buying "more" of a product than they otherwise would based on their marginal benefit and the cost of production.