Winegrape Yield and Revenue Variability in Australia

Table 5

Expected difference (%) in the coefficient of variation of revenue per ha of a variety when compared to the six most-planted varieties.

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“Area (%)” refers to the percentage of winegrape area planted to a variety in Australia as of 2023. Only those varieties with an area share higher than 0.2% are shown in this table. Those varieties are compared to the six most-planted varieties in the last six columns. S = Syrah; CS = Cabernet Sauvignon; C = Chardonnay; M = Merlot; SB = Sauvignon Blanc; PN = Pinot Noir. Each number represents the percentage difference in the coefficient of variation of revenue per ha that is expected from a variety in the first column when compared to one of the varieties in the last six columns. For example, Cabernet Sauvignon is expected to have a coefficient of variation of revenue per ha that is 18% lower than the one of Chardonnay or 21% higher than the one of Pinot Noir. The colour represents the level of significance of the coefficient used for computing each number: , , and , and not statistically significant when not highlighted. All these computations are based on the results of model (4). “Average of above” is the unweighted average of the varieties in the first column; “average of all varieties” is the unweighted average of the varieties in the first column and all the others with an area lower than 2%.