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The science that describes the management, creation and study of money, banking, credit, investments, assets and liabilities.

4 votes
1 answer
268 views

Sampler method to choose in Monte Carlo Markov chain estimation

When estimating the posterior via MCMC, are there guidelines on the best sampling method to use depending on the nature of the model? There are a variety of forms of MCMC - the Gibbs sampler, the Me …
Ram Ahluwalia's user avatar
7 votes
2 answers
4k views

Is there an R optimization package that can handle integer constraints and non-linear object...

I am looking for an optimization routine that can optimize a non-linear objective function with integer constraints. NuOPT for S-Plus, CPLEX, or Matlab include powerful optimization packages for these …
Ram Ahluwalia's user avatar
2 votes
0 answers
490 views

Approximate vs. Strict Factor model specification in R [closed]

Background: Generally, pooled time-series cross-sectional regressions utilize a strict factor model (i.e. require the covariance of residuals is zero). However, in time series such as security returns …
Ram Ahluwalia's user avatar