Agricultural production in Poland and agri-food exports

2018 ◽  
Vol 63 (4) ◽  
pp. 58-72
Author(s):  
Jacek Strojny
Keyword(s):  
Economic Policy ◽  
Impulse Response ◽  
Response Function ◽  
Agricultural Production ◽  
Vector Autoregression ◽  
Impulse Response Function ◽  
Variance Decomposition ◽  
The Other ◽  
Var Model ◽  
Research Show

The research is aiming at the identification of the dynamic causality between agricultural production in Poland and exports of agri-food goods. Identification of the magnitude and direction of these variables may be used for economic policy forming. The study covers the period of 1991—2013 and is based on the data from the FAO; the research employs the vector autoregression methodology (VAR). The study comprises, among others, the analysis of the impulse response function and variance decomposition of forecasts’ errors of VAR model variables. The results of the research show that agricultural production in Poland is shaped by both own and exports delays. On the other hand, agri-food exports are mainly influenced by their own development trends. This means that, in the VAR model, exports should be seen as a priority ('more exogenous').

scholarly journals Unemployment and COVID-19 Impact in Greece: A Vector Autoregression (VAR) Data Analysis

2021 ◽  
Vol 5 (1) ◽  
pp. 41
Author(s):  
Christos Katris
Keyword(s):  
Data Analysis ◽  
Response Function ◽  
Unemployment Rate ◽  
Vector Autoregression ◽  
Impulse Response Function ◽  
Youth Unemployment ◽  
The Other ◽  
Var Model ◽  
Unemployment Rates ◽  
The Impact

In this paper, the scope is to study whether and how the COVID-19 situation affected the unemployment rate in Greece. To achieve this, a vector autoregression (VAR) model is employed and data analysis is carried out. Another interesting question is whether the situation affected more heavily female and the youth unemployment (under 25 years old) compared to the overall unemployment. To predict the future impact of COVID-19 on these variables, we used the Impulse Response function. Furthermore, there is taking place a comparison of the impact of the pandemic with the other European countries for overall, female, and youth unemployment rates. Finally, the forecasting ability of such a model is compared with ARIMA and ANN univariate models.

Global Patents on 3D Printing: Revelations Based on Vector Autoregression Analysis for Three Decades

2016 ◽  
Vol 13 (06) ◽  
pp. 1750004 ◽  
Author(s):  
Rohit S. Kannattukunnel
Keyword(s):  
3D Printing ◽  
Impulse Response ◽  
Response Function ◽  
Time Series Data ◽  
Vector Autoregression ◽  
Impulse Response Function ◽  
Variance Decomposition ◽  
Series Data ◽  
Vec Model ◽  
The Government

Engineers and designers from automotive and aerospace sectors have been using 3D printing (3DP) for decades to build prototypes. However, 3DP became popular only recently. This paper is divided into three sections. Section 1 is introductory in nature, which deals with current trends, the modeling process of printing and deliberation on different categories of 3DP. Section 2 deals with the research methodology. An exquisite technique to study innovation dealing with time series data, called the vector autoregression (VAR), is performed to analyze the world patent data on 3DP, based on the information provided by the Government of UK and the International Monetary Fund (IMF). Section 3 attempts to forecast future trends on 3DP by using two techniques viz. impulse response function and variance decomposition. The VAR analysis performed revealed that GDP is not directly instrumental in the advancement in patenting of 3DP technology. Results captured by way of impulse response function suggest that when a shock is given to PR itself, it decreases sharply, whereas when a shock is given to investment, PR undergoes a steady decline. Thus, if there is any adverse shock imparted on investments, it directly reduces the patent ratio. Lastly, when an impulse is given to GDP, PR continuously increases, which implies that increase in GDP causes hike in investment which ultimately increases PR. The results of variance decomposition indicate that in the initial periods, PR itself explains the maximum variance, followed by the GDP and to the least by investment. The changes observed with the trend of explanatory character of variance imply that more investments in technology are instrumental in increasing patent ratio in the G7 countries as per the vector error correction (VEC) model developed here. Though during the nascent stage of emerging technologies investment in technology may not necessarily increase the patent ratio, the result obtained brings to light interesting insights.

scholarly journals ANALISIS DAMPAK INVESTASI TERHADAP PEREKONOMIAN DAERAH: STUDI KASUS INVESTASI PERTAMBANGAN MINERAL LOGAM PROVINSI PAPUA

2020 ◽  
Vol 2 (1) ◽  
pp. 11-28
Author(s):  
Fadhila Achmadi Rosyid
Keyword(s):  
Impulse Response ◽  
Response Function ◽  
Vector Autoregression ◽  
Impulse Response Function ◽  
Variance Decomposition

Sektor pertambangan salah satunya dicirikan sebagai kegiatan yang padat modal. Biaya modal atau investasi dikeluarkan oleh pemilik Ijin Usaha Pertambangan mulai dari tahap penyelidikan umum sampai dengan beroperasinya kegiatan penambangan. Aktivitas investasi secara umum akan berdampak kepada masyarakat sekitar ataupun daerah karena meningkatkan kegiatan ekonomi dan kesempatan kerja, meningkatkan pendapatan nasional, dan meningkatkan taraf kemakmuran masyarakat. Dalam hal investasi di bidang pertambangan, penelitian ini akan mengevaluasi pengaruh investasi sektor pertambangan logam terhadap perekonominan di Provinsi Papua. Analisis dilakukan dengan metode Vector Autoregression (VAR) dengan memperhatikan Impulse Response Function (IRF) dan Variance Decomposition (VD) terhadap variabel-variabel sebagai berikut; investasi, pertumbuhan PDRB umum provinsi Papua, PDRB sektor pertambangan, PDRB sektor pertanian, PDRB sektor konstruksi, serta tenaga kerja pada sektor tersebut. Hasilnya menunjukkan investasi sektor pertambangan logam memberikan dampak yang positif terhadap PDRB total Provinsi Papua, PDRB sektor pertambangan dan pertanian, serta nilai tambah dalam hal tenaga kerja di sektor pertambangan. Respon negatif diberikan oleh PDRB sektor konstruksi karena peningkatan investasi dan PDRB sektor pertambangan. Sektor konstruksi diindikasi hanya memberikan dampak keterkaitan yang rendah kepada sektor yang lain dilihat dari kontribusi PDRB sektor tersebut terhadap pembentukan PDRB sektor pertanian yang rendah dan respon yang rendah dari PDRB sektor pertambangan.

Research on the Association Mechanism between China's Textile Industry and Macroeconomic — Based on VAR Model

2011 ◽  
Vol 332-334 ◽  
pp. 2050-2053
Author(s):  
Fan Li ◽  
Zhi Min Song ◽  
Xing Han
Keyword(s):  
Impulse Response ◽  
Response Function ◽  
Textile Industry ◽  
Time Lag ◽  
Impulse Response Function ◽  
Variance Decomposition ◽  
Var Model ◽  
Dynamic Correlations ◽  
Lag Effect ◽  
Integration Test

This paper studies the relationship between the development of textile industry and the macroeconomic growth. By establishing the VAR model and co-integration test, the paper systematically describes the dependency between them. It also applies the method of impulse response function and variance decomposition to analyze their dynamic correlations. The result shows that there exists a long-term relationship between the textile industry and macroeconomic in China. But the relevance between them has something alike as well as something different through the analysis of impulse response function and variance decomposition. The good functioning of macroeconomic creats favourable conditions for the development of the textile industry. However, the influence on the textile industry of macroeconomic has a time-lag effect.

Interest Rate–Economic Growth Nexus Under Currency Board Operations

2021 ◽  
Vol 8 (1) ◽  
pp. 13-24
Author(s):  
Martinianus Tshimologo Tibinyane ◽  
Teresia Kaulihowa
Keyword(s):  
Economic Growth ◽  
Interest Rate ◽  
Impulse Response ◽  
Response Function ◽  
Open Economy ◽  
Small Open Economy ◽  
Impulse Response Function ◽  
Policy Instrument ◽  
Variance Decomposition ◽  
Currency Board

This paper analyses the effect of the prime interest rate as a monetary policy instrument to stimulate economic growth in Namibia, a small open economy that is constrained by currency board operations. A Vector Autoregressive Model (VAR) was used for the period 1980–2019. The result shows that Namibia’s prime interest rate has no significant effect on economic growth. This finding remains robust and consistent when impulse response function and variance decomposition are employed. The impulse response function indicates a shock on the prime interest rate exhibits an inverse relationship. However, this effect is insignificant in both short and long-run scenarios. The variance decomposition indicates that the prime interest rate has a strongly exogenous impact, implying it has a weak influence on GDP growth. Policy implication indicates that small open economies under currency board operations need to identify different policy responses to circumvent external shocks and addresses their development needs.

Financial Deepening and Economic Growth in Jamaica

2017 ◽  
Vol 18 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Alton Best ◽  
Brian M. Francis ◽  
C. Justin Robinson
Keyword(s):  
Economic Growth ◽  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
Variance Decomposition ◽  
Annual Data ◽  
Financial Deepening ◽  
The Real ◽  
Long Run ◽  
Out Of Sample

The paper empirically examines the question of whether bank liquid reserves to bank assets ratio and domestic credit to private sector as a percentage of GDP strengthens financial deepening on the real sector and hence catalyzes economic growth in Jamaica. A Granger causality approach is employed within a multivariate framework. Cointegration is used to examine the short- and long-run relationships within the model. Innovative accounting techniques (impulse response function and variance decomposition) are also utilized to determine the out-of-sample relation between financial deepening and economic growth. The empirical analysis is conducted with annual data from 1980 to 2014 with three proxies for financial deepening. The empirical evidence suggests a ‘supplying-leading’ relationship in both the short and long run. These results are confirmed by the innovation accounting techniques (impulse response function and the variance decomposition). Our findings imply that Jamaica should first concentrate on developing its financial sectors which has the potential to spur higher levels of economic growth in the real sectors of the economy.

scholarly journals Pengaruh Inflasi, Nilai Tukar Rupiah, Jumlah Uang yang beredar dan Jakarta Islamic Index (JII) terhadap Nilai Aktiva Bersih Reksadana Syariah

2017 ◽  
Vol 1 (1) ◽  
pp. 15-33
Author(s):  
Ulul Albab Badru Zaman
Keyword(s):  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
Variance Decomposition ◽  
Microsoft Excel ◽  
Vector Autoregressive

Penelitian ini bertujuan untuk mengetahui Pengaruh Inflasi, Nilai Tukar Rupiah, Jumlah Uang Beredar dan Jakarta Islamic Index (JII) terhadap Nilai Aktiva Bersih Reksadana Syariah selama periode Januari 2012-Desember 2015. Data yang digunakan dalam penelitian ini adalah data bulanan dari masing-masing variabel. Metode analisis yang digunakan dalam penelitian ini adalah Vector Autoregressive (VAR) dengan menggunakan Microsoft Excel 2010 dan Eviews versi 9.0. Hasil penelitian ini menemukan bahwa: (1) Berdasarkan uji Kausalitas Granger, tidak ada variabel yang menunjukkan hubungan kausalitas dua arah dengan NAB Reksadana Syariah. Akan tetapi, hanya variabel Kurs yang masih menunjukkan hubungan kausalitas satu arah dengan NAB Reksadana Syariah. (2) Berdasarkan uji Impulse Response Function, NAB Reksadana Syariah menunjukkan respons yang tidak stabil terhadap guncangan pada variabel Nilai Tukar Rupiah, Jumlah Uang Beredar dan Jakarta Islamic Index (JII) Akan tetapi, guncangan pada masing-masing variabel cenderung direspons secara positif oleh variabel NAB Reksadana Syariah. (3) Berdasarkan uji Variance Decomposition, variabel yang memberikan pengaruh guncangan terbesar yaitu variabel NAB Reksadana Syariah itu sendiri diikuti dengan Jakarta Islamic Index (JII), Jumlah Uang Beredar, Nilai Tukar Rupiah dan Inflasi.

scholarly journals PENGARUH PERTAMBAHAN KASUS COVID-19 ANTARA PROVINSI DKI JAKARTA DAN JAWA TIMUR MENGGUNAKANVECTOR AUTOREGRESSIVE

2021 ◽  
Vol 2020 (1) ◽  
pp. 146-151
Author(s):  
Adina Astasia ◽  
Surya Wagito ◽  
Fitri Bunga Adelia ◽  
You Ari Faeni
Keyword(s):  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
Variance Decomposition ◽  
Vector Autoregressive

Pertambahan kasus covid-19 di Jakarta dan Jawa Timur menjunjukkan tren yang saling berkesinambungan. Mobilitas penduduk yang tinggi merupakan salah satu faktor yang mempengaruhi penyebaran penyakit di berbagai wilayah. Charu (2017) melakukan studi mengenai penyebaran penyakit influenza di Amerika Serikat selama 2002-2010 dengan hasil bahwa setiap epidemi dapat dikaitkan dengan peristiwa penularan jarak jauh yang akan memicu transmisi selanjutnya. Penelitian ini bertujuan untuk mengetahui efek dinamika pertambahan kasus covid-19 di Jakarta dan Jawa Timur. Variabel yang digunakan pada penelitian ini adalah data pertambahan kasus covid-19 di Jakarta dan Jawa Timur dari @kawalcovid-19. Metode Vector Autoregressive (VAR) dengan Impulse Response Function (IRF) dan Variance Decomposition (VDC) dipilih karena mampu menjelaskan respon yang terjadi di suatu wilayah terhadap shock di wilayah itu sendiri dan wilayah lain. Penelitian ini membuktikan adanya pengaruh positif dan signifikan pertambahan kasus covid-19 di Jakarta terhadap pertambahan kasus covid-19 di Jawa Timur.

scholarly journals Intervenções Regulatórias, Volatilidade e Contágio: Uma Análise VIRF

2014 ◽  
Vol 12 (3) ◽  
pp. 385
Author(s):  
Gabriel Godofredo Fiuza de Bragança ◽  
Marcelo De Sales Pessoa ◽  
Katia Rocha
Keyword(s):  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
The Other ◽  
Conditional Heteroskedasticity ◽  
Regulatory Interventions ◽  
The One ◽  
The Impact ◽  
Electricity Utilities ◽  
Regulatory Measure

This paper examines how regulatory interventions can affect the market risk of electricity utilities and telecom carriers traded in the Brazilian stock market (BOVESPA). Our article uses a bivariate Generalized AutoRegressive Conditional Heteroskedasticity (GARCH - BEKK) model to analyze the impact of two relevant and surprising measures taken by the correspondent Brazilian regulatory authorities in 2012 (one in each sector) on both markets’ volatilities and covariance. We also adopt the volatility impulse response function (VIRF) developed by Hafner & Herwartz (2006) to estimate their persistence. On the one hand, the results indicate that the effects of the telecommunications’ regulatory intervention are negligible but, on the other hand, the impact of the electricity's regulatory measure is significant, long-lasting and contagious.

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