Marcus makes birdhouses, which he sells online. He can make three birdhouses a day. What is the best way for him to increase his productivity?

Productivity measures how much output Marcus makes in a given amount of time. If he spends less time making each birdhouse, he can make more birdhouses in a day, increasing his productivity. Raising the sale price or posting more advertisements could affect sales, but not how efficiently he produces birdhouses.

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