We introduce a modification of the quadratic-Leontieff multi-output cost function that is particularly suitable for the data of the Farm Accountancy Data Network. We present least squares and entropy estimates of that function and compare their results for a sample of crop farms. Our results are...

A generalised cross entropy instrumental variables estimator is used to recover the non-stationary transition probability matrix for the Danish pork industry. A technique is also developed to recover missing data points due to category re-specifications. The impact of a set of exogenous...