Citation: Ve. Ball et al., AGGREGATION METHODS FOR INTERCOUNTRY COMPARISONS OF PRICES AND REAL VALUES IN AGRICULTURE - A REVIEW AND SYNTHESIS, European review of agricultural economics, 24(2), 1997, pp. 183-206
Citation: E. Ball et al., AGRICULTURAL PRODUCTIVITY IN THE UNITED-STATES AND THE EUROPEAN-UNION- AN INTERTEMPORAL AND INTERSPATIAL COMPARISON, American journal of agricultural economics, 79(5), 1997, pp. 1721-1722