Zbigniew Polański, Mikołaj Szadkowski
An accounting-based model of seigniorage, and recent monetary developments 		391
Anna Sznajderska
Should we recalculate the level of spillover effects if the alternative GDP measures for China are correct? 		437
Sylwia Radomska
Prognozowanie indeksu WIG20 za pomocą sieci neuronowych NARX i metody SVM 		457
MISCELLANEA
Adam Karbowski
Unproductive entrepreneurship and patents 		473
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