what's the vector if we regress to zero why is the vector of x a negative value? which of the following is the correct regressive vector for x? what is a derivative of x what is the regress vector of negative returns how to hedge downside risk how to hedge negative assets which part of the vector is regressive what is the value of a regressed vector what is xbeta regress? does regressing the negative part of a vector hedge? what is the positive part of the vector what is the vector of negative variables what is the derivative of zero for zero what is X beta on a vector which regressive vector only provides an example of a positive value of a positive or negative vector? what is the regressive vector of the positive part of a vector? which vector has the most negative and zero derivatives which is positive, and which is negative? what is the value of negative regressing on an independent vector