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Monte Carlo (MC) simulation is a technique that provides approximate solutions to a broad range of mathematical problems. A drawback of the method is its high computational cost, especially in a high-dimensional setting. Estimating the Tail Value-at-Risk for large portfolios or pricing basket...
Persistent link: https://www.econbiz.de/10011194455
Long memory processes have been extensively studied over the past decades. When dealing with the financial and economic data, seasonality and time-varying long-range dependence can often be observed and thus some kind of non-stationarity can exist inside financial data sets. To take into account...
Persistent link: https://www.econbiz.de/10005012511
Test for unit root based in wavelets theory is recently defined (Gençay and Fan, 2007). While the new test is supposed to be robust to the initial value, we bring out by contrast the significant effects of the initial value in the size and the power. We found also that both the wavelets unit...
Persistent link: https://www.econbiz.de/10005510604
Testing the fractionally integrated order of seasonal and non-seasonal unit roots is quite important for the economic and financial time series modelling. In this paper, Robinson test (1994) is applied to various well-known long memory models. Via Monte Carlo experiments, we study and compare...
Persistent link: https://www.econbiz.de/10005510606
This paper deals with the effect of inequality on subsequent long run growth. Using a threshold regression analysis, we find two threshold variables, namely human capital and inequality. Three clubs are then identified. One of our results is that the estimated relationship exhibits multiple...
Persistent link: https://www.econbiz.de/10005510608
Electricity spot prices exhibit a number of typical features that are not found in most financial time series, such as complex seasonality patterns, persistence (hyperbolic decay of the autocorrelation function), mean reversion, spikes, asymmetric behavior and leptokurtosis. Efforts have been...
Persistent link: https://www.econbiz.de/10005797746
In this paper, nine memory parameter estimation procedures for the fractionally integrated I(d) process, semi-parametric and parametric, which prevail in the existing literature are reviewed ; through the simulation study under the ARFIMA (p,d,q) setting we cast a light on the finite sample...
Persistent link: https://www.econbiz.de/10009492765
This paper focuses on a procedure to test for structural changes in the first two moments of a time series, when no information about the process driving the breaks is available. To approximate the process, an orthogonal Bernstein polynomial is used and testing for the null is achieved either by...
Persistent link: https://www.econbiz.de/10009207540
In this article, we study the pattern as well as the systematic features of the calendar effect perceived in the intraday volatility of the foreign exchange rate of the euro vis-à-vis the dollar at five minutes of intervals. We obtain by the means of this analysis a differentiation of these...
Persistent link: https://www.econbiz.de/10008622020
In this article, we examine the announcement effect of news relating to the monetary policies of the ECB and the FED and resulting from the official meetings of the Council of the governors and the FOMC on intraday volatility of the foreign exchange rate euro-dollar at five minutes of intervals....
Persistent link: https://www.econbiz.de/10008622030