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How to Install Drywall

Nearly every interior wall and ceiling in every home in America is covered with sheetrock = drywall = gypsum board. Sheetrock (a brand name for drywall) consists of an interior layer of rigid gypsum (a mineral composed of calcium sulfate dihydrate) plus some additives, with outside layers of strong paper or fiberglass. It normally comes…

The theory of the firm remains unfinished

Why do firms exist? Transaction costs. Specialization. Returns to scale. Risk pooling. Reputation. Institutional capital. Is that everything? Probably not. It wasn’t that long ago we were talking about the prevalence of zero marginal productivity employees within firms. Perhaps we should add low (zero?) marginal productivity employers to our list of considerations. Graduate students rejoice,…

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