Ordinary Portland Cement (OPC) is a fine, gray powder made from a blend of limestone, clay, and a few additional minerals When it comes to choosing the right cement for a construction project, OPC ...
Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...
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Inside the new room where Sotheby’s pitches clients
Above: Sotheby’s restored boardroom, with works by Marc Chagall and Helen Frankenthaler. The biggest moments at auction houses are often the ones the public doesn’t see. They happen before the hammer ...
For any service company that bills on a recurring basis, a key variable is the rate of churn: How many customers cancel? In many competitive industries, churn can be substantial—some wireless carriers ...
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