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All Journal JURNAL EKONOMI DAN BISNIS AIRLANGGA Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan
Anggrayni, Devi
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Arts Computer Science & IT Economics, Econometrics & Finance Education Social Sciences

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ANALYSIS OF THE APPLICATION OF THE PURCHASING POWER PARITY THEORY TO PREDICTE THE RUPIAH EXCHANGE RATE AGAINST THE US DOLLAR Anggrayni, Devi
SIBATIK JOURNAL: Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Vol. 4 No. 7 (2025)
Publisher : Penerbit Lafadz Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/sibatik.v4i7.2799

Abstract

This study examines the validity of the Purchasing Power Parity (PPP) theory which is the basis for the relationship between currency exchange rates and differences in price levels between countries. The research innovation lies in the differentiation of inflation variables into two main components, namely Inflation GDP deflator and Inflation consumer prices, as an improvement on previous studies. The analysis was conducted by making the rupiah exchange rate a dependent variable influenced by several key variables based on the PPP theory, including Inflation GDP deflator, Inflation consumer prices, Real interest rate, and Broad money growth. The econometric approach using the VECM (Vector Error Correction Model) model reveals important findings where all independent variables show a significant influence in the long term, while only Inflation consumer prices have an effect in the short term. These findings not only confirm the limitations of the PPP theory in explaining short-term exchange rate dynamics but also provide empirical evidence of the complex exchange rate adjustment mechanism in the Indonesian economy, where structural and non-economic factors play an important role in addition to conventional economic variables.
ECOLOGICALLY UNEQUAL EXCHANGE, AND FOREST LOSS: HOW AFRICA'S DEMAND FOR CPO IMPACTS THE NATURAL ENVIRONMENT IN INDONESIA? Nugraha, Fadel; Tarit, Pauline Chepkwisich; Sebalo, Tumelo; Anggrayni, Devi; Susilowati, Indah
Jurnal Ekonomi dan Bisnis Airlangga Vol. 35 No. 2 (2025): JURNAL EKONOMI DAN BISNIS AIRLANGGA
Publisher : Fakultas Ekonomi dan Bisnis, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jeba.V35I22025.385-394

Abstract

Introduction: This study examines the environmental consequences of increased Indonesian crude palm oil (CPO) exports to African markets, emphasizing deforestation impacts. Methods: Using annual time-series data from 1980 to 2023, an Autoregressive Distributed Lag (ARDL) econometric model is employed to capture both short-term dynamics and long-term equilibrium relationships. Results: The findings robustly confirm the Ecologically Unequal Exchange (EUE) hypothesis, revealing significant negative impacts of Indonesian palm oil exports on domestic forest cover. Specifically, increased palm oil exports, agricultural land expansion, GDP growth, migration patterns, and demographic pressures from urban and rural populations collectively exacerbate deforestation rates. Empirical results also confirm a stable long-term cointegration among these variables, highlighting enduring environmental risks associated with export-driven agricultural strategies. Conclusion and suggestion: Policymakers must integrate sustainability into trade policies, enhance international cooperation for responsible agricultural practices, and strengthen regulatory frameworks to mitigate environmental damage effectively.
Co-Authors Fachry Abda El Rahman Indah Susilowati Sebalo, Tumelo Tarit, Pauline Chepkwisich