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  2. Keynesian cross - Wikipedia

    en.wikipedia.org/wiki/Keynesian_cross

    The 45-degree line represents an aggregate supply curve which embodies the idea that, as long as the economy is operating at less than full employment, anything demanded will be supplied. Aggregate expenditure and aggregate income are measured by dividing the money value of all goods produced in the economy in a given year by a price index.

  3. Identity line - Wikipedia

    en.wikipedia.org/wiki/Identity_line

    The Keynesian cross diagram includes an identity line to show states in which aggregate demand equals output. In a 2-dimensional Cartesian coordinate system, with x representing the abscissa and y the ordinate, the identity line [1] [2] or line of equality [3] is the y = x line. The line, sometimes called the 1:1 line, has a slope of 1. [4]

  4. Ekman spiral - Wikipedia

    en.wikipedia.org/wiki/Ekman_spiral

    So if the layer thickness is small, because of a small viscosity of the fluid for example, this component could be very large. At last, the flow at the surface is 45 degrees to the right on the northern hemisphere and 45 degrees to the left on the southern hemisphere with respect to the wind-direction. In case of the bottom Ekman spiral, this ...

  5. Spacetime diagram - Wikipedia

    en.wikipedia.org/wiki/Spacetime_diagram

    The original position on your time line (ct) is perpendicular to position A, the original position on your mutual timeline (x) where (t) is zero. This timeline where timelines come together are positioned then on the same timeline even when there are 2 different positions. The 2 positions are on the 45 degree Event line on the original position ...

  6. Coordination failure (economics) - Wikipedia

    en.wikipedia.org/wiki/Coordination_failure...

    The curve represents possible output decisions for the individual firm, and it intersects with the 45 degree line at three points, meaning there are three equilibria. If the firm and society are better off with more output, point B is most desirable. However, the firm's production is determined by what the other firms decide.

  7. Lorenz curve - Wikipedia

    en.wikipedia.org/wiki/Lorenz_curve

    The Lorenz curve cannot rise above the line of perfect equality. A Lorenz curve that never falls beneath a second Lorenz curve and at least once runs above it, has Lorenz dominance over the second one. [5] If the variable being measured cannot take negative values, the Lorenz curve: cannot sink below the line of perfect inequality, is increasing.

  8. Catenary - Wikipedia

    en.wikipedia.org/wiki/Catenary

    A chain hanging from points forms a catenary. The silk on a spider's web forming multiple elastic catenaries.. In physics and geometry, a catenary (US: / ˈ k æ t ən ɛr i / KAT-ən-err-ee, UK: / k ə ˈ t iː n ər i / kə-TEE-nər-ee) is the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends in a uniform gravitational field.

  9. Spherical coordinate system - Wikipedia

    en.wikipedia.org/wiki/Spherical_coordinate_system

    The elevation is the signed angle from the x-y reference plane to the radial line segment OP, where positive angles are designated as upward, towards the zenith reference. Elevation is 90 degrees (= ⁠ π / 2 ⁠ radians) minus inclination. Thus, if the inclination is 60 degrees (= ⁠ π / 3 ⁠ radians), then the elevation is 30 degrees ...

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    keynesian 45 degree line45 degree line economics