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@@ -1,8 +1,24 @@
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# A code to solve for the optimum in the bathtub model
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-This project contain Fortran and AMPL code
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+This project contains Fortran and AMPL code
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to solve for the optimum in the Bathtub model.
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-Both the alpha-beta-gamma model and smooth utility
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-functions are considered.
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+Two types of utility functions are considered:
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+
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+- alpha-beta-gamma tastes, and
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+- smooth utility (logarithmic and exponential)
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+
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+## Dependencies
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+
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+The Fortran code calls some standard functions and libraries:
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+
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+- DFZERO function
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+- lapack and Blas
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+
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+and relies on
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+
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+- IpOpt (Fortran version)
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+
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+for the optimization process.
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+
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