Causality Validation of Three Marketing Mix Components and Interest in Smartphone Purchase Decisions


  • Tri Cicik Wijayanti Faculty of Economics and Business, Universitas Gajayana, Malang
  • Rahmawati Faculty of Economics and Business, Universitas Mulawarman, Samarinda
  • Muh. Alvianto Putra Arizandi Sadarrudin Departement of Management, Sekolah Tinggi Ilmu Ekonomi Samarinda, Samarinda
  • Johan Johan Faculty of Economics and Business, Universitas Kartini, Surabaya
  • Dio Caisar Darma Sekolah Tinggi Ilmu Ekonomi Samarinda


purchasing decisions, interests, marketing mix, smartphone, consumer, Surabaya


The field of technology has experienced phenomenal growth. Moreover, the evolution
of cellphones has become a major draw for customers. The aim of this study is to
validate the effect of marketing mix components and interest in purchasing decisions for
Samsung brand smartphones in the Tambaksari District (Surabaya City). A total of 498
informants were recruited and interviewed for data collection on pricing, promotions,
distributions, interests, and purchasing decisions at cellular kiosks and electronic stores.
After the data were collected, they were analyzed using the multiple linear regression
method. The model feasibility procedure concluded that all seven hypotheses were
accepted (p<0.05). In the direct effect, any increase in price, promotion, distribution,
and interest can increase purchasing decisions. From the indirect effect, it is evident
that interest is a consistent mediator in increasing its influence on price, promotion,
and distribution on purchasing decisions. The marketing channel applied by the seller
influences consumer decisions through interest. This study’s approach should therefore
be developed through constructive consumer attention.

Author Biography

Dio Caisar Darma, Sekolah Tinggi Ilmu Ekonomi Samarinda

DIO CAISAR DARMA is active as an independent researcher in the fields of Macroeconomics, Development Economics, Management, and other fields related to economic issues. On several occasions, he is also active as a reviewer and editorial team at JPENSI: Jurnal Penelitian Ekonomi & Akuntansi (Sinta-5), JESYA: Jurnal Ekonomi dan Ekonomi Syariah (Sinta-5), RIC: Review of Innovation and Competitiveness (DOAJ), WSEAS Transactions on Systems and Control (Q4), WSEAS Transaction on Business and Economics (Q4), ESI: Entrepreneurship and Sustainability Issues, (Q1), Journal of Economics and Management Sciences (Crossref), BMS: Business Management and Strategy (RePEc, EconsPaper), SPATIUM (Q1), JSPSDS: Journal of Scientific Papers "Social development and Security" (DOAJ), and EFISIENSI: Kajian Ilmu Administrasi (Sinta-3).