Penelitian ini dilakukan untuk menganalisis pengaruh antara literasi ekonomi, konsep diri, dan kelompok teman sebaya terhadap perilaku konsumsi Mahasiswa STIE Mahardhika Surabaya Angkatan 2018. Jenis penelitian ini termasuk ke dalam penelitian asosiatif dengan menggunakan pendekatan kuantitatif. Analisis data menggunakan regresi linear berganda. Pengambilan sampel menggunakan teknik probability sampling simple random sampling dengan metode undian. Populasi sebanyak 357 mahasiswa dan sebanyak 195 responden yaitu mahasiswa STIE Mahardhika Surabaya Angkatan 2018 yang digunakan sebagai sampel.

Hasil penelitian menunjukkan bahwa 1) Terdapat pengaruh yang signifikan antara literasi ekonomi terhadap perilaku konsumsi Mahasiswa STIE Mahardhika Surabaya Angkatan 2018. 2) Terdapat pengaruh yang signifikan antara konsep diri terhadap perilaku konsumsi Mahasiswa STIE Mahardhika Surabaya Angkatan 2018. 3) Terdapat pengaruh yang signifikan antara kelompok teman sebaya terhadap perilaku konsumsi Mahasiswa STIE Mahardhika Surabaya Angkatan 2018. 4) Terdapat pengaruh antara literasi ekonomi, konsep diri, dan kelompok teman sebaya secara bersama-sama terhadap perilaku konsumsi Mahasiswa STIE Mahardhika Surabaya Angkatan 2018.

Kata kunci:          literasi ekonomi, konsep diri, kelompok teman sebaya, perilaku konsumsi 

This study was conducted to analyze the effect of economic literacy, self-concept, and peer groups on the consumption behavior of STIE Mahardhika Surabaya students in batch 2018. This type of research is included in associative research using a quantitative approach. Data analysis using multiple linear regression. Sampling uses probability sampling techniques simple random sampling using the lottery method. The population was 357 students and as many as 195 respondents, namely STIE Mahardhika Surabaya students, batch 2018 which was used as a sample.

The results showed that 1) There was a significant effect between economic literacy on the consumption behavior of STIE Mahardhika Surabaya students in batch 2018. 2) There was a significant effect between self-concept towards consumption behavior of STIE Mahardhika Surabaya students in batch 2018. 3) There was a significant influence between groups peers on the consumption behavior of STIE Mahardhika Surabaya students in batch 2018. 4) There is an influence between economic literacy, self-concept, and peer groups together on the consumption behavior of STIE Mahardhika Surabaya students in batch 2018.

Keywords:          economic literacy, self concept, peer groups, consumption behavior