On the unit root nonstationary behavior of daily self-potential (SP) time series with infinite variance noise: an example from Urla, Izmir-Turkey

2021 ◽  
Author(s):  
Petek Sindirgi
Keyword(s):  
Time Series ◽  
Unit Root ◽  
Infinite Variance ◽  
Self Potential

On the Noninvertible Moving Average Time Series with Infinite Variance

1993 ◽  
Vol 9 (4) ◽  
pp. 680-685 ◽  
Author(s):  
Ngai Hang Chan
Keyword(s):  
Time Series ◽  
Unit Root ◽  
Moving Average ◽  
Infinite Variance ◽  
Average Model ◽  
Initial Value ◽  
Least Squares Estimate ◽  
Moving Average Model ◽  
Heavy Tailed ◽  
Stable Index

The limiting distribution of the least squares estimate of the derived process of a noninvertible and nearly noninvertible moving average model with infinite variance innovations is established as a functional of a Lévy process. The form of the limiting law depends on the initial value of the innovation and the stable index α. This result enables one to perform asymptotic testing for the presence of a unit root for a noninvertible moving average model through the constructed derived process under the null hypothesis. It provides not only a parallel analog of its autoregressive counterparts, but also a useful alternative to determine “over-differencing” for time series that exhibit heavy-tailed phenomena.

scholarly journals Assessing the Fiscal Sustainability of Government Finances in European Countries

2013 ◽  
Vol 52 (1) ◽  
pp. 87-93
Author(s):  
Yuriy Melnykov
Keyword(s):  
Growth Rate ◽  
Time Series ◽  
Interest Rate ◽  
Unit Root ◽  
Statistical Approach ◽  
Fiscal Sustainability ◽  
European Countries ◽  
Gdp Growth ◽  
Gdp Growth Rate

This paper analyses the fiscal sustainability of government finances in the 27 EU countries and Norway using an empirical, statistical approach and ADF tests for a unit root in the time series of the differences between the GDP growth rate and the long-term interest rate, and the primary balance.

scholarly journals HAS INFLATION TARGETING BEEN SUCCESSFUL? EVIDENCE FROM UNIT ROOT TESTS

2019 ◽  
Vol 78 (308) ◽  
pp. 120
Author(s):  
Mesut Turkay ◽  
Burak Sencer Atasoy
Keyword(s):  
Time Series ◽  
Unit Root ◽  
Inflation Targeting ◽  
Inflation Rate ◽  
Unit Root Tests ◽  
Policy Framework ◽  
Panel Unit Root Tests ◽  
Panel Unit Root ◽  
The World ◽  
Monetary Policy Framework

<p class="run-in" align="center"><strong>ABSTRACT</strong></p><p>The popularity of inflation targeting has risen in the last decade and the number of countries that adopted inflation targeting as their monetary policy framework surpassed 40 by the end of 2016. This study analyzes whether inflation targeting around the world has been successful in terms of achieving the announced target and keeping inflation rate around it. We argue that a successful inflation targeting necessitates the deviation of inflation from the target be stationary. We employ both time series and panel unit root tests in order to analyze the stationarity properties of deviation of inflation from the target. Results of unit root tests provide evidence in favor of the success of inflation targeting framework around the world.</p><p align="center"><strong> </strong></p><p align="center"><strong>¿HAN SIDO EXITOSAS LAS METAS DE INFLACIÓN? RESULTADOS DE LAS PRUEBAS DE RAÍZ UNITARIA</strong></p><p class="run-in" align="center"><strong>RESUMEN</strong></p>La popularidad de las metas de inflación ha aumentado en la última década y el número de países que adoptaron metas de inflación como su marco de política monetaria sobrepasó los 40 a finales del 2016. Este estudio analiza si las metas de inflación alrededor del mundo han tenido éxito en términos de alcanzar el objetivo anunciado y mantener la tasa de inflación alrededor de su meta. Argumentamos que una meta exitosa de inflación requiere que la desviación de la inflación respecto a la meta sea estacionaria. Empleamos tanto series de tiempo como pruebas de raíz unitaria en panel con el fin de analizar las propiedades estacionarias de la desviación de la inflación en relación con el objetivo. Los resultados de las pruebas de raíz unitaria proporcionan evidencia a favor del éxito del marco de metas de inflación en todo el mundo.

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