2,399 research outputs found
Accumulation and Growth in a Two-Country Model: A Simulation Approach
This paper analyzes saving and capital accumulation in a two-good growth model of two market economies in which economic agents optimize with perfect foresight. The goal is to present a model in which short-run dynamics and the steady-state are soundly integrated. We stress the importance of asset markets as the linkage that transmits disturbances both internationally and intertemporally. While many components of the model described below can be found in the literature on optimal consumption, investment and international growth models, we provide a consistent synthesis. Our framework permits the analysis of structural adjustment in the global economy, and the dynamic effects of a wide range of public policies.
Creating a Market Economy in Eastern Europe: The Case of Poland
macroeconomics, market economy, Eastern Europe, Poland
Prospects for Russia's Economic Reforms
macroeconomics, Russia, Economic Reforms
Geography, Demography, and Economic Growth in Africa
macroeconomics, Geography, Demography, Economic Growth, Africa
Graphs, matroids, and geometric lattices
AbstractIt is shown that two triply connected graphs are isomorphic if their associated geometric lattices are isomorphic. The notion of vertex in a graph is described in terms of irreducible hyperplanes. Finally, necessary and sufficient conditions are given that a lattice be isomorphic to the geometric lattice associated with a graph
Efficient posterior sampling for high-dimensional imbalanced logistic regression
High-dimensional data are routinely collected in many areas. We are
particularly interested in Bayesian classification models in which one or more
variables are imbalanced. Current Markov chain Monte Carlo algorithms for
posterior computation are inefficient as and/or increase due to
worsening time per step and mixing rates. One strategy is to use a
gradient-based sampler to improve mixing while using data sub-samples to reduce
per-step computational complexity. However, usual sub-sampling breaks down when
applied to imbalanced data. Instead, we generalize piece-wise deterministic
Markov chain Monte Carlo algorithms to include importance-weighted and
mini-batch sub-sampling. These approaches maintain the correct stationary
distribution with arbitrarily small sub-samples, and substantially outperform
current competitors. We provide theoretical support and illustrate gains in
simulated and real data applications.Comment: 4 figure
Normal frames for non-Riemannian connections
The principal properties of geodesic normal coordinates are the vanishing of
the connection components and first derivatives of the metric components at
some point. It is well-known that these hold only at points where the
connection has vanishing torsion and non-metricity. However, it is shown that
normal frames, possessing the essential features of normal coordinates, can
still be constructed when the connection is non-Riemannian.Comment: 4 pages, plain TeX. To appear in Class. Quantum Gra
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Accumulation and Growth in a Two-Country Model: A Simulation
This paper analyzes saving and capital accumulation in a two-good growth model of two market economies in which economic agents optimize with perfect foresight. The goal is to present a model in which short-run dynamics and the steady-state are soundly integrated. We stress the importance of asset markets as the linkage that transmits disturbances both internationally and intertemporally. While many components of the model described below can be found in the literature on optimal consumption, investment and international growth models, we provide a consistent synthesis. Our framework permits the analysis of structural adjustment in the global economy, and the dynamic effects of a wide range of public policies
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