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2011 Apr 14
1
how to code a restriction matrix with the following restrictions
...x? In short I run the regression:Return=alpha + beta*benchmark(i) + u My goal is to find the constrained alpha with the following two restrictions: alpha + (beta -1)Rfmin* <=0 alpha + (beta -1)Rfmax* <=0 *To facilitate the code I will find the value of Rfmin and Rfmax separately so I will have a vector (Rfmin, Rfmax)' directly available. Anyone know how I can code the matrix ui representing the above restrictions, so I can fit the constrained regression? Thanks for your help, seb...