Tis the season for economic and business data to get messed up by—the season! Things are not normal this time of year. Shopping for clothing goes up, for building materials goes down, and woe be to the executive who doesn’t recognize the pattern. I pointed out the role of our December holiday in How Big Is Christmas For Retail and explained the basics in Seasonality In Business And Economics: A Primer. In this article I explain how to seasonally adjust your own data.
Tis the season for economic and business data to get messed up by—the season! Things are not normal this time of year. Shopping for clothing goes up, for building materials goes down, and woe be to the executive who doesn’t recognize the pattern. I pointed out the role of our December holiday in How Big Is Christmas For Retail and explained the basics in Seasonality In Business And Economics: A Primer. In this article I explain how to seasonally adjust your own data.
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