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In statistics, a moving average (rolling average or running average or moving mean [1] or rolling mean) is a calculation to analyze data points by creating a series of averages of different selections of the full data set. Variations include: simple, cumulative, or weighted forms. Mathematically, a moving average is a type of convolution.
Trailing twelve months (TTM) is a measurement of a company's financial performance (income and expenses) used in finance.It is measured by using the income statements from a company's reports (such as interim, quarterly or annual reports), to calculate the income for the twelve-month period immediately prior to the date of the report.
The Sahm rule originates from a chapter in the Brookings Institution's report on the use of fiscal policy to stabilize the economy during recessions. [3] The chapter, written by Sahm, proposes fiscal policy to automatically send stabilizing payments to citizens to boost economic well-being.
The notation ARMAX(p, q, b) refers to a model with p autoregressive terms, q moving average terms and b exogenous inputs terms. The last term is a linear combination of the last b terms of a known and external time series d t {\displaystyle d_{t}} .
Robert Shiller's plot of the S&P composite real price–earnings ratio and interest rates (1871–2012), from Irrational Exuberance, 2d ed. [1] In the preface to this edition, Shiller warns that "the stock market has not come down to historical levels: the price–earnings ratio as I define it in this book is still, at this writing [2005], in the mid-20s, far higher than the historical average
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Also called resource cost advantage. The ability of a party (whether an individual, firm, or country) to produce a greater quantity of a good, product, or service than competitors using the same amount of resources. absorption The total demand for all final marketed goods and services by all economic agents resident in an economy, regardless of the origin of the goods and services themselves ...
According to a survey by CNN Money, the top 100 best companies to work for had less than a 3% turnover rate during a 12-month period. [5] Retention rate may also refer to colleges. According to the FAFSA, the retention rate is the percentage of a school’s first-time, first-year undergraduate students who continue at that school the next year ...