THE life of a predator can be fraught. Expend too much energy on hunting your prey and even success can be costly. Saint-Gobain, a French maker of glass and other building materials, might be learning that lesson.
It mostly grows by snapping up smaller fry, but an attempt to buy a midsized Swiss rival, Sika, has gone on for two years. It could take as long again for Swiss courts to resolve the most intractable corporate struggle in Europe.
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