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  2. Mills Novelty Company - Wikipedia

    en.wikipedia.org/wiki/Mills_Novelty_Company

    By the early 1960s, the Bell-O-Matic Corporation was being run by Tony Mills. He sold the company to American Machine and Science, Inc. (AMSC) owned by Wallace E. Carroll (later the chairman of Katy Industries), reportedly for USD500,000. AMSC had also acquired O. D. Jennings & Company and the two companies were merged to form TJM Corporation.

  3. List of price index formulas - Wikipedia

    en.wikipedia.org/wiki/List_of_price_index_formulas

    A price index aggregates various combinations of base period prices (), later period prices (), base period quantities (), and later period quantities (). Price index numbers are usually defined either in terms of (actual or hypothetical) expenditures (expenditure = price * quantity) or as different weighted averages of price relatives ( p t ...

  4. Price index - Wikipedia

    en.wikipedia.org/wiki/Price_index

    A price index (plural: "price indices" or "price indexes") is a normalized average (typically a weighted average) ...

  5. Bell 222/230 - Wikipedia

    en.wikipedia.org/wiki/Bell_222/230

    The more powerful Bell 222B was introduced in 1982 with a larger diameter main rotor. The 222B-based Bell 222UT Utility Twin, with skid landing gear, was introduced in 1983. [1] A development of the 222 is the Bell 230, with the 222's LTS 101 engines replaced by two Allison 250 turboshaft engines, plus other refinements. A converted 222 first ...

  6. MIT Billion Prices project - Wikipedia

    en.wikipedia.org/wiki/MIT_Billion_Prices_project

    The Billion Prices Project (BPP) was an academic initiative at MIT Sloan and Harvard Business School that uses prices collected from hundreds of online retailers around the world on a daily basis to conduct research in macro and international economics and compute real-time inflation metrics. [1]

  7. Bell System Practices - Wikipedia

    en.wikipedia.org/wiki/Bell_System_Practices

    A typical volume of Bell System Practices from the 1970s. The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1]

  8. Price-weighted index - Wikipedia

    en.wikipedia.org/wiki/Price-weighted_index

    Adjustment Factor = Index specific constant "Z" / (Number of shares of the stock * Adjusted stock market value before rebalancing) A stock trading at $100 will thus be making up 10 times more of the total index compared to a stock trading at $10. The Dow Jones Industrial Average and Nikkei 225 are examples of price-weighted stock market indexes.

  9. Case–Shiller index - Wikipedia

    en.wikipedia.org/wiki/Case–Shiller_index

    CSXR is a composite index of the home price index for 10 major Metropolitan Statistical Areas in the United States. The index is published monthly by Standard & Poor's and uses the Case and Shiller method of a house price index using a modified version of the weighted-repeat sales methodology. This method is able to adjust for the quality of ...