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All Journal Media Statistika Ekonomi Bisnis Jurnal Administrasi Kesehatan Indonesia Eko-Regional: Jurnal Pembangunan Ekonomi Wilayah
Ribut Nurul Tri Wahyuni
Politeknik Statistika STIS
Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Environmental Science Health Professions Public Health Social Sciences

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SPILLOVER EFFECT INFLASI DAGING SAPI ANTAR KOTA: APLIKASI METODE BEKK-GARCH UNTUK JAKARTA, SALATIGA, DAN SURABAYA Ribut Nurul Tri Wahyuni; Nasrudin Nasrudin
MEDIA STATISTIKA Vol 13, No 1 (2020): Media Statistika
Publisher : Department of Statistics, Faculty of Science and Mathematics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.538 KB) | DOI: 10.14710/medstat.13.1.80-91

Abstract

Beef consumption in Indonesia tends to increase and its price fluctuates. In addition to internal factors, the volatility of beef inflation can also be influenced by other regions (spillover effect). Using BEKK-GARCH model, we try to show spillover effect the volatility of beef inflation in Jakarta, Salatiga, and Surabaya. The transmissions of news effects occur from Jakarta and Surabaya to Salatiga and from Jakarta and Salatiga to Surabaya. Transmission of two-way volatility occurs between Jakarta and Surabaya. Furthermore, the transmission of one-way volatility occurrs from Jakarta to Salatiga. Price fluctuation in consumer areas will be followed by price fluctuation in other consumer areas and producer areas. Therefore, controlling beef inflation should be began from consumer areas.
CONFIDENCE SHOCKS IN EMERGING MARKETS AND THEIR GLOBAL CONTAGION: INSIGHTS FROM G-CUBED SIMULATIONS Wahyuni Andriana Sofa; Ribut Nurul Tri Wahyuni; Fitri Kartiasih
Jurnal Ilmiah Ekonomi Bisnis Vol. 30 No. 2 (2025)
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/eb.2025.v30i2.12754

Abstract

The global economy has begun to recover from the global financial crisis (GFC), which occurred around 10 years ago, according to recent economic statistics. However, investor confidence has declined in a number of significant emerging markets (EMEs) due to rising interest rates in the US and ongoing trade tensions between the US and China, potentially causing contagion effects worldwide. The worldwide impacts of the financial crisis in certain important EMEs, namely Argentina, Brazil, Turkey, and Russia (ABTR), as well as its widespread impact on raising global investment and consumption risk, are examined in this paper using the G-Cubed model for G-20 nations with six sectors. According to the findings, because three distinct shocks struck at the same time in ABTR countries—where the initial shock emerged—they experience the most negative short-term effects of the confidence crisis. The cost of capital rises as a result of the capital outflow from these nations, which causes firms to disinvest or reduce their capital stock. Households across all nations are also more likely to discount future income streams as a result of their increased risk assessment, which promotes more savings and lower spending. Additionally, both developed and non-shocked emerging countries grew as a result of increased capital inflows, but their trade balances worsened due to exchange rate appreciation, which made the production decline worse.
Heterogeneity of Social Returns to Education Across Employees Education Levels in Indonesia Ribut Nurul Tri Wahyuni; Retnaningsih Retnaningsih; Lia Yuliana
Eko-Regional: Jurnal Pembangunan Ekonomi Wilayah Vol 20 No 2 (2025): September 2025
Publisher : Faculty of Economics and Business Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32424/er.v20i2.15782

Abstract

This study estimates the heterogeneity of agglomeration externalities across employees' education levels in Indonesia. This study uses the 2020-2024 microdata and the Instrumental Variable (IV) Heckman model with the historical population density and the number of universities as IVs. The result indicates that social returns to education from the local high-skill labor market, which is a part of agglomeration externalities, are positively significant and higher for high- and medium-skilled employees than for low-skilled employees. This finding demonstrates the efficacy of public education investments, especially Indonesian government policy that can enhance the quantity and quality of university graduates, thereby promoting the transfer of knowledge to all employees and eventually reducing wage inequality between regions.
HETEROGENEITY OF JKN-PBI’S IMPACT ON HOUSEHOLD OUT-OF-POCKET HEALTH EXPENDITURES IN INDONESIA Ria Indriani; Ribut Nurul Tri Wahyuni
Indonesian Journal of Health Administration (Jurnal Administrasi Kesehatan Indonesia) Vol. 13 No. 2 (2025): December
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jaki.v13i2.2025.182-194

Abstract

Background: The National Health Insurance-Contribution Assistance Recipients (JKN-PBI) participants in Indonesia tended to increase. However, out-of-pocket (OOP) health expenditures among participants did not significantly decrease. This phenomenon may have occurred because the impact of this program on OOP health expenditures varied by household group. Aims: This study investigated the heterogeneity impact of the JKN-PBI program across per capita expenditure quartiles and residential regions in 2024. Methods: The study used data from BPS-Statistics Indonesia. Because the determination of JKN-PBI program recipients was endogenous, this study used the Inverse Propensity Score Weighting (IPW) model. Tobit regression was also applied to accommodate the OOP health expenditure reported as a zero value. Results: Participation in JKN-PBI significantly reduced OOP health expenditures. More nominal reductions occurred in higher quartiles, whereas proportional reductions occurred in lower quartiles.  This outcome indicated that households in the lower quartiles obtained greater health service advantages relative to households in the higher quartiles.  The reduction in OOP health expenditure share was also greater in rural areas. Conclusion: The government must prioritize this program in rural regions and low-income households. In addition, the government needs to identify healthcare service needs by regions and income groups so that the use of the JKN-PBI card is more optimal. Keywords: National Health Insurance Program, Out-of-Pocket Expenditure, Heterogeneous Impact, Inverse Propensity Score Weighting, Tobit Regression
Co-Authors Fitri Kartiasih Lia Yuliana Nasrudin Retnaningsih Retnaningsih Ria Indriani Wahyuni Andriana Sofa