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Analysis of Sales Promotion Effects on Household Purchase Behavior

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7.5.2.8 Variety Seeking<br />

Two intrinsic variety seeking measures are incorporated in this study (VARSEEK1 and<br />

VARSEEK2 from Table A7.1). The first is the probability <str<strong>on</strong>g>of</str<strong>on</strong>g> a switch from a favorite<br />

brand to other brands when there are no promoti<strong>on</strong>s present (BSNP, the exact definiti<strong>on</strong> is<br />

provided in Secti<strong>on</strong> 5.4.2.2). This measure corresp<strong>on</strong>ds most closely with the intrinsic<br />

variety seeking discussed in most prior research <strong>on</strong> variety seeking (see Secti<strong>on</strong> 2.3.5).<br />

Sec<strong>on</strong>d, the number <str<strong>on</strong>g>of</str<strong>on</strong>g> different favorite brands throughout the model calibrati<strong>on</strong> period<br />

(1996-1997) is incorporated as a variety seeking measure. Their relati<strong>on</strong> (logistic<br />

regressi<strong>on</strong>) with promoti<strong>on</strong> resp<strong>on</strong>se is given in Table 7.15.<br />

Table 7.15: Relati<strong>on</strong>ship variety seeking and promoti<strong>on</strong> resp<strong>on</strong>se all promoti<strong>on</strong>s<br />

VARIETY SEEKING<br />

H10: Intrinsic variety seeking and promoti<strong>on</strong> resp<strong>on</strong>se are not related.<br />

BSnp (Brand Switch index<br />

for N<strong>on</strong>-<str<strong>on</strong>g>Promoti<strong>on</strong></str<strong>on</strong>g>al<br />

shopping trips)<br />

Number <str<strong>on</strong>g>of</str<strong>on</strong>g> favorite<br />

brands<br />

B S.E. Sign. Exp(B)<br />

0.0378 0.1122 0.7363 1.0385<br />

-0.1870 0.0341 0.0000 0.8292<br />

Test results: Variety seeking and promoti<strong>on</strong> resp<strong>on</strong>se are negatively related.<br />

<strong>Household</strong>s that switch brands due to intrinsic reas<strong>on</strong>s (VARSEEK1, BSnp) do not use<br />

promoti<strong>on</strong>s more. It seems as though the presence <str<strong>on</strong>g>of</str<strong>on</strong>g> promoti<strong>on</strong>s in the retail store is not a<br />

str<strong>on</strong>g enough factor to influence intrinsic variety seekers. Intrinsic variety seekers do not<br />

switch for ec<strong>on</strong>omic benefits. This finding underlines the hypothesis that intrinsic and<br />

extrinsic variety seeking are not related, which in turn underlines the importance <str<strong>on</strong>g>of</str<strong>on</strong>g><br />

separating intrinsically and extrinsically motivated variety seeking (cf. Van Trijp et al.<br />

1996).<br />

143

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