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.

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').

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.

scholarly journals Market Integration and Causality: An Application to the Major Apple Markets in India

2021 ◽  
Vol 66 (1) ◽  
Author(s):  
Shilpa S
Keyword(s):  
Impulse Response ◽  
Response Function ◽  
Market Integration ◽  
Impulse Response Function ◽  
Price Transmission ◽  
Fruit Crops ◽  
Causality Test ◽  
Additional Information ◽  
Major Implication ◽  
The Government

Market integration and prices of fruit crops such as apple play an important role in determining the production decisions of apple farmers. In this context, the present study examines the degree of spatial market integration and price transmission across five major apple markets of the country, viz. Shimla, Chandigarh, Delhi, Bengaluru and Mumbai by adopting Johansen’s Cointegration Test, Grangers Causality and Impulse Response Function. The outcomes of the study strongly buttress the cointegration and interdependence of the apple markets in India. To get additional information on whether and in which direction price transmission is occurring between market pairs, Ganger’s Causality Test has been used, which has confirmed Shimla to be the price determining market as it has causal relations with all the selected markets. The Impulse Response Function supported that all the selected markets responded well to standard deviation shock given to any other market. The major implication of the study is further improvement in market integration situation through dissemination of price and arrival data efficiently and developing communication means with in the markets by the government.

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 Analysing the Relationship between Budget Deficit and Current Account Deficit in Namibia

2020 ◽  
pp. 35-43
Author(s):  
Achiles Shifidi ◽  
Jacob M. Nyambe
Keyword(s):  
Causal Relationship ◽  
Current Account ◽  
Budget Deficit ◽  
Time Series Data ◽  
Current Account Deficit ◽  
Impulse Response Function ◽  
Transmission Mechanism ◽  
Series Data ◽  
Current Account Balance ◽  
The Government

Is there a causal relationship between budget deficit and current account deficit? This study attempts to explain the significance of the transmission mechanism, (the exchange rate and interest rate) in explaining the twin deficit hypothesis (i.e. budget deficit and current account deficit) in Namibia. The study employed analytical methods of unit roots, cointegration, Granger-causality, and the impulse response function for estimation. In contributing to this ongoing debate, the study used the case of Namibia over the period spanning from 1990-2014 using time series data. Budget deficit and current account deficit proved to be significant. There is a unidirectional causal relationship between budget deficit and current account deficit in Namibia which runs from current account deficit to budget deficit. However, the transmission mechanism proved to be less significant in explaining the twin deficit hypothesis in Namibia.  Having found a positive relationship between current account deficit and budget deficit in Namibia, the government should consider curbing the increasing current account balance as a way of reducing its adverse effect on the budget balance. From this study, it is indicated that stabilising the current account deficit problem could assist in managing the budget deficit problem in Namibia.

scholarly journals The Impact of Agricultural Exports on Economic Growth in Nigeria

2016 ◽  
Vol 64 (2) ◽  
pp. 691-700 ◽  
Author(s):  
Nahanga Verter ◽  
Věra Bečvářová
Keyword(s):  
Economic Growth ◽  
Granger Causality ◽  
Impulse Response ◽  
Response Function ◽  
Impulse Response Function ◽  
Agricultural Trade ◽  
Variance Decomposition ◽  
Ols Regression ◽  
Agricultural Exports ◽  
The Impact

Agriculture is the backbone of Nigeria’s socioeconomic development. This paper investigates the impact of agricultural exports on economic growth in Nigeria using OLS regression, Granger causality, Impulse Response Function and Variance Decomposition approaches. Both the OLS regression and Granger causality results support the hypothesis that agricultural exports- led economic growth in Nigeria. The results, however, show an inverse relationship between the agricultural degree of openness and economic growth in the country. Impulse Response Function results fluctuate and reveal an upward and downward shocks from agricultural export to economic growth in the country. The Variance Decomposition results also show that a shock to agricultural exports can contribute to the fluctuation in the variance of economic growth in the long run. For Nigeria to experience a favourable trade balance in agricultural trade, domestic processing industries should be encouraged while imports of agricultural commodities that the country could process cheaply should be discouraged. Undoubtedly, this measure could drastically reduce the country’s overreliance on food imports and increase the rate of agricultural production for self-sufficiency, exports and its contribution to the economic growth in the country.

scholarly journals DAMPAK KETIDAKSTABILAN NILAI TUKAR RUPIAH TERHADAP PERMINTAAN UANG M2 DI INDONESIA

2008 ◽  
Vol 9 (2) ◽  
pp. 121
Author(s):  
Etty Puji Lestari
Keyword(s):  
Time Series ◽  
Impulse Response ◽  
Time Series Data ◽  
Research Result ◽  
Forecast Model ◽  
Variance Decomposition ◽  
Series Data ◽  
Stationary Condition ◽  
Before And After ◽  
Structural Innovation

This article attempts to estimate demand for M2 money in Indonesia using time series non-stationary technique in 1997.1 - 2006.4. There are four methods are used in research, first, VAR estimation used to forecast model which have interaction of data time series. Second, function impulse response to see response from every variable to structural innovation of the other variables at the same time. Third, variance decomposition to know dissociating variation change of shock from each variable to other variables in model. Fourth method, ADL ECM to see long-range adjustment in variable, before and after addition of variable. The result, there are non-stationary condition in the time series data in the research. Result of VAR estimation show that there is no causality relation two ways among fifth of variable. From impulse, response known that response of M2 variable to other variable very fluctuative but finally the condition will return to stabilize.

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