Abstract :
ABSTRAK
Menganalisis sifat hubungan sebab akibat antara penerimaan pajak dan
pertumbuhan ekonomi di Indonesia dalam bentuk model ekonomi pertumbuhan endogen.
Analisis kausalitas pada penelitian ini menggunakan pengaturan multivariat melalui
pendekatan vektor autoregression dengan metode Toda?Yamamoto sebagai uji kausalitas.
Dengan menggunakan data time series pada tahun 1983?2021, temuan penelitian
menunjukkan bahwa variabel kontrol: modal, tenaga kerja, FDI, belanja pemerintah,
inflasi, dan nilai tukar, menjelaskan hubungan kausalitas penerimaan pajak dan
pertumbuhan ekonomi. Hasil uji kausalitas dengan metode Toda-Yamamoto menunjukkan
terdapat hubungan kausalitas dua arah antara penerimaan pajak dengan pertumbuhan
ekonomi, dengan nilai chi-squared sebesar 78.96730 dan probabilitas sangat nyata sebesar
? = 0.0000, dimana penerimaan pajak menentukan dan menyebabkan perubahan dan
meningkatkan pertumbuhan ekonomi, sedangkan dengan nilai chi-squared sebesar
7.291364 dan probabilitas riil ? = 0.0632 maka pertumbuhan ekonomi menentukan
penerimaan pajak. Selanjutnya, menggunakan regresi ordinary least squares (OLS) yang
lolos uji hipotesis klasik menganalisis pengaruh tax ratio terhadap pertumbuhan ekonomi,
dengan nilai t-statistik sebesar -2.952949 dan probabilitas sangat nyata sebesar 0.0057,
sedangkan t-statistik kuadrat tax ratio sebesar 2.540621 dengan probabilitas sangat nyata
sebesar 0,0158. Bahwa pengaruh tax ratio terhadap pertumbuhan ekonomi bersifat
kontraktif, namun jika sudah mencapai nilai tax ratio tertentu, yakni sebesar 15,29% maka
peningkatan tax ratio akan mendorong pertumbuhan ekonomi. Nilai tax ratio sebesar
15,29% merupakan tax ratio ideal dalam menciptakan pertumbuhan ekonomi Indonesia
yang optimal. Selain itu, kurva hubungan penerimaan pajak dan pertumbuhan ekonomi
Indonesia sangat berbeda dengan bentuk kurva Laffer yang berbentuk huruf ?U? terbalik,
kurva Laffer Indonesia cenderung datar dan melengkung ke bawah.
Kata Kunci: Penerimaan pajak, pertumbuhan ekonomi, endogen, kausalitas, VAR,
Toda-Yamamoto, tax ratio, kurva Laffer, Indonesia.
ABSTRACT
Analyzes the nature of the causal relationship between tax revenues and economic
growth in Indonesia in the form of an endogenous growth economic model. Causality
analysis in this study uses a multivariate setup through a vector autoregression approach
with the Toda?Yamamoto method as a causality test. Using time series data for 1983?2021,
research findings show that the control variables: capital, labor, FDI, government
spending, inflation, and exchange rates, capture the relationship between tax revenues and
economic growth. The results of the causality test using the Toda-Yamamoto method show
that there is a bidirectional causality relationship between tax revenues and economic
growth, with a chi-squared value of 78.96730 and a very real probability of ? = 0.0000,
where tax revenues determine and cause changes and increase economic growth, whereas
with a chi-squared value of 7.291364 and the real probability ? = 0.0632, of economic
growth determines tax revenues. Next, using ordinary least squares (OLS) regression
which passes the classic hypothesis test to analyze the effect of the tax ratio on economic
growth, with t-statistic value of -2.952949 and a very real probability of 0.0057, while the
squared tax ratio t-statistic is 2.540621 with a very real probability real is 0.0158. That
the influence of the tax ratio on economic growth is contractionary, but if it reaches a
certain tax ratio value, namely 15.29%, an increase in the tax ratio will encourage
economic growth. The tax ratio value of 15.29% is the ideal tax ratio in creating optimal
economic growth in Indonesia. Apart from that, the curve of the relationship between tax
revenues and Indonesia's economic growth is very different from the shape of the Laffer
curve which is in the shape of an inverted "U", the Indonesian Laffer curve tends to be flat
and curves downwards.
Keywords: Tax revenues, economic growth, endogenous, causality, VAR, Toda?Yamamoto, tax ratio, Laffer curve, Indonesia.