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  2. One in ten rule - Wikipedia

    en.wikipedia.org/wiki/One_in_ten_rule

    In statistics, the one in ten rule is a rule of thumb for how many predictor parameters can be estimated from data when doing regression analysis (in particular proportional hazards models in survival analysis and logistic regression) while keeping the risk of overfitting and finding spurious correlations low.

  3. Market economy - Wikipedia

    en.wikipedia.org/wiki/Market_economy

    [1] [2] Market economies range from minimally regulated free market and laissez-faire systems where state activity is restricted to providing public goods and services and safeguarding private ownership, [ 3 ] to interventionist forms where the government plays an active role in correcting market failures and promoting social welfare .

  4. Economy - Wikipedia

    en.wikipedia.org/wiki/Economy

    [10] The ancient economy was based primarily on subsistence farming. [11] The Shekel are the first to refer to a unit of weight and currency, used by the Semitic peoples. The first usage of the term came from Mesopotamia circa 3000 BC. and referred to a specific mass of barley which related other values in a metric such as silver, bronze ...

  5. Economic equilibrium - Wikipedia

    en.wikipedia.org/wiki/Economic_equilibrium

    Firm 1's reaction function q1=R1(q2) gives its optimal output q1 to a given output q2 of firm 2. Likewise, firm 2's reaction function q2=R2(q1). The Cournot-Nash equilibrium occurs where the two reaction functions intersect and both firms are choosing the optimal output given the output of the other firm.

  6. White House confirms tariffs on Canadian, Chinese, Mexican ...

    www.aol.com/news/white-house-confirms-tariffs...

    Trump’s first-term tariffs included a 25% tariff on steel and 10% tariff on aluminum from most countries, imposed in 2018, and tariffs between 7.5% and 25% on Chinese goods comprising $362 ...

  7. Economies of scope - Wikipedia

    en.wikipedia.org/wiki/Economies_of_scope

    Economies of scope are "efficiencies formed by variety, not volume" (the latter concept is "economies of scale"). [1] In the field of economics, "economies" is synonymous with cost savings and "scope" is synonymous with broadening production/services through diversified products.

  8. Microeconomics - Wikipedia

    en.wikipedia.org/wiki/Microeconomics

    [1] [2] [3] Microeconomics focuses on the study of individual markets, sectors, or industries as opposed to the economy as a whole, which is studied in macroeconomics. One goal of microeconomics is to analyze the market mechanisms that establish relative prices among goods and services and allocate limited resources among alternative uses. [ 4 ]

  9. Jacob Wallenberg - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/jacob-wallenberg

    From January 2008 to December 2012, if you bought shares in companies when Jacob Wallenberg joined the board, and sold them when he left, you would have a 18.0 percent return on your investment, compared to a -2.8 percent return from the S&P 500.