In fact, [[conservative]] economists have increasingly challenged whether the '''free rider''' problem really exists. Studies on the historical building of lighthouses reveal misconceptions about the economics of that issue, and the public expense of [[public schools]] have far outweighed their benefits. | In fact, [[conservative]] economists have increasingly challenged whether the '''free rider''' problem really exists. Studies on the historical building of lighthouses reveal misconceptions about the economics of that issue, and the public expense of [[public schools]] have far outweighed their benefits. |