id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
bae-3221	Heckelei, Thomas; Britz, Wolfgang; Zhang, Yinan	Positive Mathematical Programming Approaches – Recent Developments in Literature and Applied Modelling	2012	16	.pdf	application/pdf	9805	369	54	Specifically, advances in the empirical foundation of parameter specifications as well as the economic rationalisation of PMP models – both criticized in earlier reviews – are investigated. Heckelei and Britz (2005) specifically focus on parameter specification and simulation behavior of PMP models and criticize the weak empirical justification and consequently arbitrary model response implied by many of the early applications.	cache/bae-3221.pdf	txt/bae-3221.txt