Showing 1 - 10 of 29
This paper presents a combinatorial polynomial-time algorithm for minimizing submodular set functions. The algorithm employs a scaling scheme that uses a flow in the complete directed graph on the underlying set with each arc capacity equal to the scaled parameter.
Persistent link: https://www.econbiz.de/10005779433
We describe an @( n^4 h min{log U, n^2logn}) capacity scaling algorithm for the minimum cost submodular flow problem. Our algorithm modifies and extends the Edmonds-Karp capacity scaling algorithm for minimum cost flow to solve the minimum cost submodular flow problem. The modification entails...
Persistent link: https://www.econbiz.de/10005634186
The conventional growth-accounting approach to estimating the sources of economic growth requires unrealistically strong assumptions about either competitiveness of factor markets or the form of the underlying aggregate production function. This paper outlines a new approach utilizing...
Persistent link: https://www.econbiz.de/10005768674
We characterize a country's exchange rate regime by how its central bank channels a capital account shock across three variables: exchange depreciation, interest rates, and international reserve flows. Structural vector autoregression estimates for Brazil, Mexico, and Turkey reveal such...
Persistent link: https://www.econbiz.de/10005769109
Since Durbin (1954) and Sargan (1958), instrumental variable (IV) method has long been one of the most popular procedures among economists and other social scientists to handle linear models with errors-in-variables. A direct application of this method to nonlinear errors-in-variables models,...
Persistent link: https://www.econbiz.de/10005511977
Since the extensive work by Burns and Mitchell (1947), many economists have interpreted economic fluctuations in terms of business cycle phases. Given this, we argue that in addition to usual model selection criteria currently used in the profession, the adequacy of a univariate macroeconomic...
Persistent link: https://www.econbiz.de/10005515035
The authors characterize a country’s exchange rate regime by how its central bank channels a capital account shock across three variables: exchange depreciation, interest rates, and international reserve flows. Structural vector autoregression estimates for Brazil, Mexico, and Turkey reveal...
Persistent link: https://www.econbiz.de/10005673571
Since the extensive work by Burns and Mitchell, many economists have interpreted economic fluctuations in terms of business-cycle phases. Given this, the authors argue that, in addition to usual model-selection criteria currently used in the profession, the adequacy of a univariate macroeconomic...
Persistent link: https://www.econbiz.de/10005732698
The conventional growth-accounting approach to estimating the sources of economic growth requires unrealistically strong assumptions about the competitiveness of factor markets and the form of the underlying aggregate production function. This paper outlines a new approach utilizing...
Persistent link: https://www.econbiz.de/10005599410
Persistent link: https://www.econbiz.de/10005425237