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Unit roots in output, an exponential 2 per cent rate of convergence and no change in the underlying dynamics of output … (conditional and unconditional) convergence suit first step approximation. We show both theoretically and empirically how the … uniform 2 per cent rate of convergence repeatedly found in the empirical literature is the outcome of an underlying parameter …
Persistent link: https://www.econbiz.de/10005770774
This paper focuses on nominal exchange rates, specifically the US dollar rate vis-a-vis the Euro and the Japanese Yen at a daily frequency. In the paper both absolute values of returns and squared returns are modelled using long-memory techniques, being particularly interested in volatility...
Persistent link: https://www.econbiz.de/10010934086
This paper examines the dynamics of stock prices in Ukraine by estimating the degree of persistence of the PFTS stock market index. Using long memory techniques we show that the log prices series is I(d) with d slightly above 1, implying that returns are characterised by a small degree of long...
Persistent link: https://www.econbiz.de/10010292682
Deciding whether a time series that appears nonstationary is in fact fractionally integrated or subject to structural change is a diffcult task. However, various tests have recently been introduced for distinguishing long memory from level shifts and nonlinearity. In this paper, three testing...
Persistent link: https://www.econbiz.de/10010292859
This paper investigates persistence in financial time series at three different frequencies (daily, weekly and monthly). The analysis is carried out for various financial markets (stock markets, FOREX, commodity markets) over the period from 2000 to 2016 using two different long memory...
Persistent link: https://www.econbiz.de/10011622025
This paper revisits the Fisher hypothesis by estimating fractional integration and cointegration models that are more general than the standard ones based on the classical I(0)/I(1) dichotomy. Two sets of results are obtained under the alternative assumptions of white noise and Bloomfield (1973)...
Persistent link: https://www.econbiz.de/10011655328
This paper investigates persistence in financial time series at three different frequencies (daily, weekly and monthly). The analysis is carried out for various financial markets (stock markets, FOREX, commodity markets) over the period from 2000 to 2016 using two different long memory...
Persistent link: https://www.econbiz.de/10011657117
This paper revisits the Fisher hypothesis by estimating fractional integration and cointegration models that are more general than the standard ones based on the classical I(0)/I(1) dichotomy. Two sets of results are obtained under the alternative assumptions of white noise and Bloomfield (1973)...
Persistent link: https://www.econbiz.de/10011657203
This paper investigates the degree of persistence of market fear. Specifically, two different long-memory approaches (R/S analysis with the Hurst exponent method and fractional integration) are used to analyse persistence of the VIX index over the sample period 2004-2016, as well as some...
Persistent link: https://www.econbiz.de/10011674100
We propose a family of self-normalized CUSUM tests for structural change under long memory. The test statistics apply non-parametric kernel-based fixed-b and fixed-m long-run variance estimators and have well-defined limiting distributions that only depend on the long-memory parameter. A Monte...
Persistent link: https://www.econbiz.de/10012030933