기술제품 재구매시 제품지식과 전환비용이 제품속성별 중요도에 미치는 영향 = Effect of Product Knowledge and Switching Cost on Product Attribute Importances in Repurchasing a Technological Product

다국어 초록 (Multilingual Abstract)

In this study, focusing on a repurchasing situation of a hi-tech combined product DSLR (digital single-lens reflex) camera, we have analyzed how are the effects of functional performances of a product (as intrinsic attributes) and the brand of a product (as an extrinsic attribute) on a customer`s choice of a product changing according to the level of the customer`s knowledge about the product and the amount of switching cost caused by DSLR lens. Our first research hypothesis (H1) is that a customer with a high level of product knowledge would think much of the functional performances of a product than a customer with a low level of product knowledge did, while a customer with a low level of product knowledge would think much of the brand of a product than a customer with a high level of product knowledge did. Our second research hypothesis (H2) is that a customer with a large switching cost would think much of the brand of a product than a customer with a small switching cost did, while a customer with a small switching cost would think much of the functional performances of a product than a customer with a large switching cost did. We used conjoint analysis, for a situation of repurchasing DSLR camera, to test our research hypotheses. First, we estimated the relative importances of attributes, including functional performances and the brand, of the DSLR camera for each customer who has DSLR camera, by assuming that he or she is going to repurchase a DSLR camera. After that, respondents, to the conjoint questionnaire, were divided into two groups by the level of product knowledge (to test H1) and the amount of switching cost (to test H2). Finally, we tested if there is any significant difference in the relative importance of each attribute between the two groups. Conjoint profiles were driven with 4 attributes: CCD(charge coupled device) size, number of pixels (as intrinsic attributes), brand (as an extrinsic attribute), and price. The 4 attributes were set to have 2×3×2×3 levels respectively. We used nominal scales for CCD size (full-frame or crop) and brand (two big brands in the market: Cannon or Nicon), and ratio scales for number of pixels and price. Hence the full factorial design needs 36 profiles. However, in order to be able to make an efficient comparison by reducing the number of profiles, we applied a fractional factorial design to set 9 conjoint profiles. The level of product knowledge was estimated by the factor score from 5 measurement variables about subjective level of product knowledge. And the amount of switching cost was calculated by the remaining value of DSLRlens the respondents have. It is interesting to note that DSLR-lens is a complementary good for the DSLR, so the switching cost is caused by a lock-in to the brand he or she has because of the complementary good. 179 respondents gave their preference order among 9 conjoint profiles. The relative importances of 4 attributes was driven for each respondents. The decreasing order of the average values of the relative importances for all respondents if price > CCD size > number of pixels > brand. In order to test the research hypotheses, we used t-test to test if there is any significant difference in relative importances of attributes according to the level of product knowledge or the amount of switching cost. The mean difference tests for the relative importance of 4 attributes between the 2 groups, divided by the level of product knowledge, show that ① the relative importance of CCD size is significantly larger in the customer group with a high level of product knowledge than in the customer group with a low level of product knowledge, and ② the relative importance of brand is significantly smaller in the customer group with a low level of product knowledge than in the customer group with a high level of product knowledge. However, the mean difference tests for the relative importance of 4 attributes between the 2 groups, divided by the amount of switching cost, show that ① the relative importance of brand is significantly larger in the customer group with large amount of switching cost than in the customer group with small amount of switching cost, and ② the relative importance of CCD size is significantly smaller in the customer group with large amount of switching cost than in the customer group with small amount of switching cost. The result of this research means that, in a situation of repurchasing the DSLR, the higher his or her level of product knowledge is, the more (or the less) he or she thinks about the intrinsic attribute (or the extrinsic attribute). It also means that, the larger the amount of his or her level switching cost is, the more (or the less) he or she thinks about the extrinsic attribute (or the intrinsic attribute).

참고문헌 (Reference)

1 류강석, "히트상품 선정이 소비자반응에 미치는 영향:제품지식과 브랜드강도의 조절작용을 중심으로" 한국마케팅학회 21 (21): 57-80, 2006

2 김상훈, "하이테크마케팅" 박영사 2004

3 김상훈, "하이테크 신제품 구매에 있어 브랜드 혹은 성능 위주의 제품 선택에 영향을 미치는 변수에 대한 연구" 2006

4 최인혁, "제품에 부가된 혁신적 속성이 제품 디자인 평가에 미치는 영향" 29 (29): 203-235, 2003

5 이유재, "전환비용의 선행요인 및 결과변수에 대한 연구-서비스 가입형태의 조절효과를 중심으로" 한국마케팅학회 20 (20): 1-28, 2005

6 석관호, "속성 유사성이 제품 선택에 미치는 영향에 관한 연구" 한국마케팅학회 23 (23): 57-73, 2008

7 김상훈, "소비자 특성이 추구편익 및 내구재 속성의 중요도 인식에 미치는 영향:소비자 혁신성, 대인적 민감도, 소비자 지식을 중심으로" 한국마케팅학회 20 (20): 209-230, 2005

8 김상훈, "새로운 속성 추가 시 소비자의 제품평가 및 구매의도에 미치는 영향요인에 대한 탐색적 연구" 2006

9 임병훈, "브랜드선택에 있어 브랜드 퍼스낼리티와 제품속성의 상대적 중요도에 관한 실증적 연구" 한국마케팅학회 18 (18): 1-21, 2003

10 한상만, "네트워크외부성이 소비자 선택행동에 미치는 영향에 관한 연구 : 디지털 카메라를 중심으로" 한국소비자학회 15 (15): 1-26, 2004

11 박찬욱, "구매의사결정에 있어서 내재적 속성과 상표의 상대적 중요성에 영향을 미치는 소비자 요인에 관한 연구: 관여와 제품지식을 중심으로" 한국소비자학회 14 (14): 4-84, 2003

12 박찬욱, "관여도와 제품지식의 상관관계에 관한연구: 제품유형과 제품지식 측정방법의 조정적 역할을 중심으로" 11 (11): 75-98, 2000

13 배상욱, "고객만족과 고객충성도 간의 관계 - 비선형성과 전환장벽의 조절효과" 한국마케팅관리학회 15 (15): 71-92, 2010

14 Jones, Michael A., "Why Customers Stay: Measuring the Underlying Dimensions of Services Switching Costs and Managing Their Differential Strategic Outcomes" 55 : 441-450, 2002

15 Kim, Moon-Koo, "The effects of customer satisfaction and switching barrier on customer loyalty in Korean mobile telecommunication services" Pergamon Press Ltd. 28 (28): 145-159, 2004

16 Sharma, Neeru, "The Role of Pure and Quasimoderators in Services: an Empirical Investigation of Ongoing Customer-serviceprovider Relationships" 10 : 253-262, 2003

17 Hsee, Christopher K., "The Evaluability Hypothesis: an Explanation for Preference Reversals between Joint and Separate Evaluations of Alternatives" 67 (67): 247-257, 1996

18 Brucks, Merrie, "The Effects of Product Class Knowledge on Information Search Behavior" 12 : 1-16, 1985

19 Jones, Michael A., "Switching Barriers and Repurchase Intentions in Services" 76 (76): 259-274, 2000

20 Johnson, Eric J., "Product Familiarity and Learning New Information" 11 : 542-550, 1984

21 한상만, "Inertia가 상표전환과 선택에 미치는 영향에 관한 연구: 이동통신서비스를 중심으로" 16 (16): 85-108, 2001

22 Tellis, Gerard J., "Does Quality Win? Network Effects Versus Quality in High-Tech Ma" 46 (46): 135-149, 2009

23 Alba, Joseph W., "Dimensions of Consumer Expertise" 13 (13): 411-454, 1987

24 연합뉴스, "DSLR카메라 사용자 1년 만에 2배"

25 Bendapudi, Neeli, "Customers’ Motivations for Maintaining Relationships with Service Providers" 73 (73): 15-37, 1997

26 Burnham, Thomas A., "Consumer Switching Costs: a Typology, Antecedents, and Consequences" 31 (31): 109-126, 2003

27 Fornell, Claes, "A National Customer Satisfaction Barometer: the Swedish Experience" 56 : 6-21, 1992

28 Greene, William H., "A Latent Class Model for Discrete Choice Analysis: Contrasts with Mixed Logit" 37 (37): 681-698, 2003

29 Patterson, Paul G., "A Cross-cultural Study of Switching Barriers and Propensity to Stay with Service Providers" 79 : 107-120, 2003