Structural changes in Norwegian dairy farming

accounting adaptation de la production adjustment of production agricultural situation ajuste agrario cambio estructural changement structurel contabilidad cost analysis costos costs coyuntura agraria dairy farms exploitation agricole familiale facteur de production family farms farm results granjas lecheras milk production noruega norway precios prices prix production factors production structure profitability rentabilidad simulation models situation agricole structural change structure de production subsidies subsidios subvention valeur d'estimation valuation