Judul: The Impact of Service Quality and Customer Satisfaction on Repurchase Intentions for Self-Employed Participants in BPJS Ketenagakerjaan.
Abstrak: Despite being required by Regulation of the Minister of Manpower of the Republic of Indonesia Number 1 of 2016, BPJS Ketenagakerjaan faces difficulties in maintaining active participation in the self-employed sector because registration is based on each person's awareness and there are no penalties for failing to pay contributions, which results in a large number of self-employed participants who are not committed to doing so. The purpose of this study is to ascertain the relationship between service quality and employee competencies, product innovation, benefits, and price. To analyzie how service quality affect customer satisfaction and the last question is whether service quality indirectly influences repurchase intention through customer satisfaction. The product innovations described in this research are ones that enhance participant services in order to raise brand awareness for BPJS Ketenagakerjaan and simplify the process for participants to make contribution payments. The examples of these innovations include offering discounts to BPJS Ketenagakerjaan cardholders at cooperation merchants and continuing to expand payment options. In the West Nusa Tenggara region, which included West Nusa Tenggara, Central Lombok, East Lombok, Sumbawa, and Bima branch offices, 200 BPJS Employment participants were surveyed for the study. SEM analysis is the analytical technique used. Only product innovation, according to the findings, had a negligible impact on service quality. This is because the needs of participants who are self-employed in the Co-Marketing program are not primarily met by merchant cooperation, so it is expected that BPJS Ketenagakerjaan will be able to increase merchant cooperation in the future to meet the needs of participants who are self-employed. BPJS Ketenagakerjaan keeps working to ensure that all participants can pay at anytime, anywhere, thus employees have to socialize about this in order for participants to be aware of and use the new payment channels. Although the West Nusa Tenggara branch of BPJS Ketenagakerjaan participants still prefer to make payments conventionally through banks, it is expected that in the future, digital-based payment channels like e-commerce applications, minimarket outlets, and also EDC/BRILink machines that have been provided, will be further optimized in order to maintain sustainability. contribution. The traits of the West Nusa Tenggara population, which are still strongly correlated with the use of local languages, can also be cause for concern. Making brochures, forms, and program explanations in local languages can be implemented so that there are no language barriers that might obstruct learning and socialization. According to the study's findings, the relationship between service quality and intention to repurchase is mediated by customer satisfaction. Customer satisfaction has an indirect impact on service quality, which affects the possibility of repeated purchases. Additionally, it means that repurchase intentions rise as service quality improves, but first through increased customer satisfaction. It won't have an impact on consumers' intentions to make another purchase even if they are not satisfied.
Keyword: Benefit, Customer Satisfaction, Employee Competencies, Price, Product Innovation, Repurchase Intention

Judul: The Effect of Outreach on Financial Sustainability of BPJS Ketenagakerjaan
Abstrak: BPJS Ketenagakerjaan ditugaskan untuk melindungi tenaga kerja yang bekerja di Indonesia baik Warga Negara Indonesia (WNI) maupun Warga Negara Asing (WNA), termasuk juga Pekerja Migran Indonesia (PMI). Kepesertaan BPJS Ketenagakerjaan di Indonesia secara Undang-Undang bersifat wajib, namun masih banyak tenaga kerja yang belum menjadi peserta sehingga diperlukan jangkauan yang luas dan dalam oleh BPJS Ketenagakerjaan untuk memberikan jaminan sosial ketenagakerjaan di Indonesia. Peserta dan calon peserta BPJS Ketenagakerjaan 99,9% adalah tenaga kerja yang bekerja pada usaha berskala mikro, kecil, dan menengah. BPJS Ketenagakerjaan sebagai lembaga keuangan yang berfokus pada usaha berskala mikro, kecil, dan menengah dapat dilihat kinerjanya melalui dua pendekatan yaitu, kesejahteraan (welfarist) dan institusional. Pendekatan dari sisi kesejahteraan, BPJS Ketenagakerjaan dapat dikategorikan berhasil jika mampu menjangkau dan memberikan perlindungan sosial bagi seluruh tenaga kerja. Pendekatan dari sisi institusional, BPJS Ketenagakerjaan dapat dikategorikan berhasil jika mampu untuk berkelanjutan secara keuangan, memenuhi pembiayaan seluruh program yang ada, serta mendapatkan surplus dari pengembangan yang dilakukan. Penelitian ini bertujuan untuk menganalisis pengaruh jangkauan terhadap keberlanjutan keuangan BPJS Ketenagakerjaan dan menganalisis antara jangkauan dengan keberlanjutan keuangan terjadi trade-off atau kompatibel. Penelitian ini menggunakan data sekunder berbentuk kerat lintang terdiri dari 122 Kantor Cabang Induk (KCI) BPJS Ketenagakerjaan di Indonesia pada tahun 2018. Metode analisis yang digunakan dalam penelitian ini adalah metode Ordinary Least Square (OLS) dengan lima variabel, yaitu variabel jumlah iuran yang diterima sebagai variabel terikat, sedangkan variabel bebas diantaranya, jumlah kasus yang ditangani, jumlah nominal klaim yang dibayarkan, jumlah tenaga kerja yang aktif terdaftar, dan jumlah badan usaha yang baru terdaftar. Jangkauan yang mencakup jangkauan pelayanan, jangkauan kepesertaan, dan jangkauan calon peserta, memiliki pengaruh terhadap keberlanjutan keuangan BPJS Ketenagakerjaan. Jangkauan pelayanan berpengaruh negatif terhadap keberlanjutan keuangan BPJS Ketenagakerjaan maka terjadi trade-off antara jangkauan pelayanan dengan keberlanjutan keuangan BPJS Ketenagakerjaan. Jangkauan kepesertaan berpengaruh positif terhadap keberlanjutan keuangan BPJS Ketenagakerjaan maka terjadi kompatibel antara jangkauan kepesertaan dengan keberlanjutan keuangan BPJS Ketenagakerjaan. Jangkauan calon peserta berpengaruh negatif terhadap keberlanjutan keuangan BPJS Ketenagakerjaan maka terjadi trade-off antara jangkauan calon peserta dengan keberlanjutan keuangan BPJS Ketenagakerjaan. Hal ini mengindikasi ketika BPJS Ketenagakerjaan ingin mempertahankan keberlanjutan keuangannya maka akan mengurangi jangkauan pelayanan dan calon pesertanya., BPJS Ketenagakerjaan is assigned to protect workers who work in Indonesia, both Indonesian Citizens and Foreign Citizens, including Indonesian Migrant Workers. BPJS Ketenagakerjaan participation in Indonesia is mandatory by law, but there are still many workers who have not become participants so that a broad and deep outreach is needed by BPJS Ketenagakerjaan to provide social security for employment in Indonesia. Where 99.9% of participants and prospective participants are workers who work in micro, small and medium scale enterprises. The performance of financial institutions that focus on micro, small and medium scale enterprises can be seen through two approaches, namely, welfare and institutional. From a welfare perspective, BPJS Ketenagakerjaan can be categorized as successful if it is able to reach and provide social protection for all workers. From an institutional perspective, BPJS Ketenagakerjaan can be categorized as successful if it is able to be financially sustainable, fulfill the financing of all existing programs, and obtain a surplus from the management of funds carried out.
Keyword: BPJS Ketenagakerjaan, Jaminan Sosial, Jangkauan, Keberlanjutan Keuangan, Indonesia

Judul: Hamiltonian formulation for linear waves motion in two layers fluid
Abstrak: The surface wave could be considered as a wave that separates two fluids, namely water and air. Based on this assumption, it is introduced the interfacial wave, a wave between two layers of fluid with different density. The formulation of interfacial waves motion begins with deriving the base equation of irrotational ideal fluid. Furthermore, according to irrotational fluid assumption, the base equation can be stated in velocity potential. In this derivation, the fluids domain is assumed to be restricted by rigid lid boundary conditions, both at the upper and lower limit. Therefore, the interfacial waves motion can be explained in a hamiltonian formulation. In the hamiltonian formulation, total energy is defined as the sum of kinetic and potential energy. The hamiltonian system is obtained from reduction of kinetic energy by using the Dirichlet Neumann Operator. The resulted kinetic energy equation is nonlinear. Therefore, this form is linearized by first part of the Taylor expansion. This linearization gives a dispersion relation of linear wave. Based on this dispersion relation, the phase speed of the linear wave depends on the density ratio of the two layers fluid.
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