On the effects of search attributes on price variability: An empirical investigation on quality wines

Open Access

Table 3.

Estimation Results.

Variable	Coefﬁcient	StandardError	TStatistic	PValue	Signiﬁcance
Costant	−1, 8079	0,1782	−10, 1411	<0,0001	***
Alcoholic Content	0,2458	0,0135	18,1368	<0,0001	***
Colour
Rosé	0,0092	0,0274	0,3358	0,737
White	0,0666	0,0303	2,1975	0,0281	**
Score	0,1349	0,0111	12,1226	<0,0001	***
Age	0,1026	0,0078	13,001	<0,0001	***
Variety
Primitivo	−0, 1016	0,0316	−3, 2136	0,0013	***
Negroamaro	−0, 0272	0,0248	−1, 0947	0,2737
International	−0, 1313	0,0441	−2, 9763	0,0029	***
Minor autochtonous	0,1565	0,0315	4,9582	<0,0001	***
Others national	−0, 0049	0,0287	−0, 1715	0,8638
Appellation of Origin
Salento-PGI	0,221	0,0478	4,6186	<0,0001	***
Puglia-PGI	0,2106	0,0499	4,2206	<0,0001	***
Daunia-PGI	0,1753	0,072	2,4325	0,0151	**
Valle d’Itria-PGI	0,2942	0,082	3,5885	0,0003	***
Primitivo di Manduria-PDO	0,2025	0,0607	3,3353	0,0009	***
Salice Salentino-PDO	0,0947	0,054	1,753	0,0797	*
Castel del Monte-PDO	0,2365	0,0567	4,1691	<0,0001	***
Gioia del Colle-PDO	0,2362	0,0644	3,6631	0,0003	***
Locorotondo-PDO	0,1981	0,0769	2,5735	0,0101	**
Moscato di Trani-PDO	0,2047	0,1017	2,0126	0,0443	**
Colline Joniche Tarantine-PDO	0,5068	0,1276	3,9705	<0,0001	***
Cacc’ e mitte di Lucera-PDO	0,3954	0,1276	3,0972	0,002	***
Dependent Variable = lnPrice
F Statistic F (28, 2251) = 61,01907			P-value (F) = 1,3E-251
R² = 0,568074			Adjusted R² = 0,561457
Log-likelihood = −979,0143			Akaike criterion 2016,029
Signiﬁcance: * 1%; 5%; * 10%			Hannan-Quinn 2076,659

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