Bogus Benevolence

The Friday File: Organizations often promise that 10%, 20%, or even all profits go to charity, while other firms promise that a percentage of revenues go to charity. Of course charitable giving is always good, but as a curmudgeonly economist, I much prefer the latter approach because it gives firms no incentive to boost salaries…

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Sexual Evolution

The Friday File: Plants and pests naturally evolve in an arms race of resistance and conquest that usually has no winners. But grafted trees, because they don’t reproduce sexually, are genetically identical to each other and thus never evolve. However, the pests that prey on these trees continue to sexually reproduce and therefore evolve. Thus,…

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