Introduction

A Haskell implementation of the problem described in Aruoba and Fernández-Villaverde's paper "A Comparison of Programming Languages in Economics" http://economics.sas.upenn.edu/~jesusfv/comparison_languages.pdf

The original code in various programming languages is at https://github.com/jesusfv/Comparison-Programming-Languages-Economics

We use the Haskell library REPA and Data.Vector.Unboxed for our arrays https://hackage.haskell.org/package/repa The ST monad allows us to use mutable vectors in performance-critical parts while keeping the rest of the program mutation free.

Speed

Right now on my machine the Haskell code compiled with GHC's LLVM backend takes about 80% more time than Auroba-Villaverde's C++ code compiled with GCC.

Building

The easiest way to build is using Cabal

cabal install --only-dependencies
cabal build

will build the package.

Our default configuration uses GHC's LLVM backend. If you do not have LLVM installed run

cabal configure -f-llvm

before building.

To run the program

cabal run

Contact

Author: Jyotirmoy Bhattacharya, jyotirmoy@jyotirmoy.net