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Positive unintended consequences

Why it is good not only to have an eye for detrimental unintended consequences

Koen Smets

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Much of what we do in our day-to-day life can be viewed through economic glasses: transactions with costs and benefits for the parties concerned. When these are voluntary, as most are, the benefits for each participant exceed their costs, and the transaction has a positive sum. An obvious example is a purchase in a shop, where consumers prefer to have the goods or services in return for their money, and the supplier prefers the money in return for the item or their effort. What we do for a living is a special case of this: we offer our time and effort and get paid by an employer or a client. But it does stretch well beyond the commercial realm. We may also offer a colleague a lift, which reciprocates for the last time they did the same for us, or, as a member of the parent-teacher association in our children’s school, we volunteer at the tea stall during annual school concert. Even transactions involving nobody but ourselves are positive cost/benefit sums: when we decide to clean the windows, or have that remaining piece of cake, we are usually well aware of both aspects, and go ahead because the upside outweighs the downside.

For involuntary transactions, such as a parking fine, or a mugger stealing your wallet, this does not apply…

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