Gravity equation
The Gravity Equation and the Interdependency of Trade Costs and International Trade
... the gravity function which can lead to simultaneity-biases in empirical ...traditional gravity equations must be interpreted as overall effects, resulting from a presumably frictionless and immediate ...
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ON THE GRAVITY EQUATION OF TRADE: A CASE OF GERMANY
... In this study Germany’s latest aggregate export shares with the use of a gravity equation without and with trade frictions were examined. This is a slightly different approach from a standard methodology ...
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The International Trade of Multinational Firms: The Empirical Behaviour of Intrafirm Trade in a Gravity Equation Model. CEPS Working Document No. 147, June 2000
... the gravity equation regression model as a whole is much higher for non-intrafirm trade than for intrafirm trade, as can be seen by comparing the R 2 ...
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A Perfect Specialization Model for Gravity Equation in Bilateral Trade based on Production Structure
... of gravity-equation-support-identification and the second one checks if the model can provide an explanation for actual bilateral trade deviations from traditional gravity ...
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Intermediate inputs and the export gravity equation
... firm-level gravity equation for exports as expressed by equation ...entry equation, we run the regression controlling for time-invariant factors (columns 1-3) and then taking into account ...
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The Impact of the Internationalisation of Multinational Banks on Non financial Foreign Direct Investment in West Africa: A Modified Gravity Equation Approach
... the gravity equation, taking into account the importance of both the traditional gravity variables (size, distance) and the financial flows (loans granted by Moroccan banks in African ...The ...
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Using the Gravity Equation to Explain the Portuguese Immigration-trade Link
... Because IIT is an index varying between zero and one, we apply a logistic transformation to IIT indexes (see Hummels and Levinsohn, 1995). All explanatory variables, except dummy variables, enter the equation in ...
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Does trade promote peace? squared: a gravity equation in a rectangular panel world
... relevant gravity variables like GDP, per capita income, distance, official language, regional trade agreements and other variable describing similarities between ...
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Holding together or falling apart:Results of gravity equation of the CIS trade
... Despite recent suggestions of two-stage non-linear estimations (Helpman et al, 2008) we favor the Hausman-Taylor (Hausman-Taylor, 1981) estimation that became a widely accepted and standard technique for estimation of ...
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Estimating the gravity model without gravity using panel data
... Two of the most common approaches to handle the presence of zero trade are to either simply discarding the zeros from the sample, or to add a constant factor to each observation on the dependent variable. The first ...
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Unimodular Gravity and Averaging
... In this paper we have argued that a rigorous approach to cosmological averaging (and necessary for studying cosmological data) is perhaps most naturally studied within the context of unimodular gravity. In the ...
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The Gravity Gauge Theory and Gravity Field Equation in Flat Space
... 1 gravity gauge, and the gravity theory has been introduced into quantum field ...tensor equation of gravity field in the flat space, and found the gravity field equation is the ...
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Entropy and quantum gravity
... Gordon equation on the region of 1+1 Minkowski space in between the two branches of the hyperbola (in the usual Minkowski coordinates x and t and taking the speed of light, c, to equal 1) x 2 − t 2 = 1 – in ...
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Paradoxes of the theory of gravity
... solar gravity acting on the planets Mercury and Pluto, in the tops of small semi- axes of the ...physics equation (7) and equation theory vortex gravity ...of gravity centrifugal forces ...
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Gravitational radiation in infinite derivative gravity and connections to effective quantum gravity
... backreaction equation for any action with higher derivative terms which is quadratic in the curvature; we have not used the fact that IDG contains an infinite series of the d’Alembertian and so this method can be ...
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Tests of chameleon gravity
... modified gravity where light scalars with non-trivial self-interactions and non-minimal couplings to matter—chameleon and symmetron theories—dynamically sup- press deviations from general relativity in the solar ...
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On the calibration of the gravity model
... The first series of experiments involved estimating an OD-matrix by calibrating a gravity model on the traffic counts. This was done for a model with a piecewise con- stant deterrence function, see eq. (4). The ...
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The speed of Galileon gravity
... levels. Gravity waves are also important probes for theories going beyond Einstein’s General Relativity (GR) ...and gravity is present predict a background dependent speed of gravitational ...
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Newtonian Quantum Gravity
... of gravity has been researched for more than fifty ...puzzle. Gravity is a phenomenon generated by the undulating nature of the un- ...of gravity from simple considerations related to wave function, ...
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The Fundamental Nature of Gravity
... that gravity does not couple to the free electromagnetic field, contrary to current opinion, which is based on the incorrect proper ...quantum gravity: the spin zero graviton has been rejected on the ground ...
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