Differencing interval and autocorrelation effects on portfolio diversification: Additive versus multiplicative assumptions
In: Journal of economics and business, Band 34, Heft 1, S. 39-50
ISSN: 0148-6195
24809 Ergebnisse
Sortierung:
In: Journal of economics and business, Band 34, Heft 1, S. 39-50
ISSN: 0148-6195
In: USC-INET Research Paper No. 18-24
SSRN
Working paper
In: The journal of developing areas, Band 50, Heft 1, S. 47-57
ISSN: 1548-2278
The successful conduct of monetary policy relies on accurately characterising inflation's data generating properties. Monetary policy errors that allow inflation to transition to a high inflation regime that is very persistent might have costly economic implications as the central bank attempts to bring inflation to a lower regime, say at some target level. This paper studies the duration of inflation persistence over time and across various policy regimes. We test the inertial properties of South African inflation in a Markov-Switching autoregressive fractionally integrated moving average model. We isolate period of high inflation and low inflation and analyse how persistent it is. This is an unique application to South Africa. The use of a fractional differencing ARIMA model allows for the possibility that inflation is close to a unit root, however, still mean reverting. This implies that shocks to inflation is very persistent and take long to dissipate. The inflation persistence is measured using a test by Ng and Perron (2001). We show that inflation is more persistent during high inflation episodes relative to low inflation episodes and more volatile during low inflation periods compared to high inflation periods. We estimate that it takes approximately 70 months for 50 percent of the shocks to dissipate in a high inflation regime compared to 10 months in a low inflation regime. The model identifies three structural breaks - a low inflation regime from 1920 until 1960, a high inflation regime from 1961 until 2003, and another low inflation regime over part of the inflation targeting period, 2003-2014. We also show that inflation persistence in the high inflation regime transitioned to a low inflation regime only much later than the implementation of inflation targeting - hinting that agents take time to adjust expectations. This has an important consequence for monetary policy - monetary policy errors that allow inflation to transition to a high inflation regime may take many months for any corrective policy to become effective.
In: Public management review, S. 1-23
ISSN: 1471-9045
SSRN
In: International law reports, Band 18, S. 278-278
ISSN: 2633-707X
Nationality — Married Women — Marriage to Alien a Nullity under Foreign Law — Non-acquisition of Nationality of Husband — Nationality of Children.
In: Asian journal of research in social sciences and humanities: AJRSH, Band 7, Heft 1, S. 198
ISSN: 2249-7315
In: Oradea journal of business and economics, S. 43-56
ISSN: 2501-3599
The objective of the study was to examine the trend of inflation and its key determinants in Tanzania. We used secondary time series data observed annually from January 1970 to 2020 which are inflation rate, GDP, Exchange rate and money supply. The vector autoregressive (VAR) model was employed for modeling. Augmented Dickey-Fuller test (ADF) found that inflation rate, Gross Domestic Product (GDP), exchange rate and Money supply (M3) were initially non-stationary but they became stationary after first differencing so as to proceed with the analysis. Preliminary tests before obtaining vector auto regressive model were carried out before determining the relationship between the variables. Diagnostic test such as serial correlation, heteroscedasticity, stability and normality were also important to evaluate the model assumptions and investigate whether or not there are observations with a large, undue influence on the analysis. We used Granger causality test (GCT) to determine causal- effect relationship between the variables. The results show that, there is a long run relationship between the variables, also the results showed that exchange rate and money supply (M3) both have a positive impact on inflation rate while gross domestic product (GDP) revealed a negative impact on inflation rate. Finally, the forecast of inflation rate for 15 years ahead was performed. The study recommends that the government should pursue both contractionary monetary policy and fiscal policy in order to control inflation in the country.
In: International law reports, Band 23, S. 390-391
ISSN: 2633-707X
Aliens — Position of — Status of Refugees within Meaning of Refugees Convention of July 28, 1951 — Divorce Proceedings by Refugee of Spanish Nationality Domiciled in France — Competence of French Courts and Applicability of French Law.