scholarly journals Forecasting Brazilian output and its turning points in the presence of breaks: a comparison of linear and nonlinear models

2006 ◽  
Vol 36 (1) ◽  
pp. 5-46 ◽  
Author(s):  
Brisne J. V. Céspedes ◽  
Marcelle Chauvet ◽  
Elcyon C. R. Lima

This paper compares the forecasting performance of linear and nonlinear models under the presence of structural breaks for the Brazilian real GDP growth. The Markov switching models proposed by Hamilton (1989) and its generalized version by Lam (1990) are applied to quarterly GDP from 1975:1 to 2000:2 allowing for breaks at the Collor Plans. The probabilities of recessions are used to analyze the Brazilian business cycle. The in-sample and out-of-sample forecasting ability of growth rates of GDP of each model is compared with linear specifications and with a non-parametric rule. We find that the nonlinear models display a better forecasting performance than linear models. The specifications with the presence of structural breaks are important in obtaining a representation of the Brazilian business cycle and their inclusion improves considerably the models forecasting performance within and out-of-sample.

2013 ◽  
Vol 5 (3) ◽  
pp. 164-172
Author(s):  
Yasemin Deniz Akarım

This paper aims to compare the volatility forecasting performance of linear and nonlinear models for ISE-30 future index which is traded in Turkish Derivatives Exchangefor the period between 04.02.2005-17.06.2011. As a result of analyses, we conclude that ANN model has better forecasting performance than traditional ARCH-GARCH models. This result is important in many fields of finance such as investment decisions, asset pricing, portfolio allocation and risk management


2016 ◽  
Vol 20 (3) ◽  
Author(s):  
Saskia Rinke ◽  
Philipp Sibbertsen

AbstractIn this paper the performance of different information criteria for simultaneous model class and lag order selection is evaluated using simulation studies. We focus on the ability of the criteria to distinguish linear and nonlinear models. In the simulation studies, we consider three different versions of the commonly known criteria AIC, SIC and AICc. In addition, we also assess the performance of WIC and evaluate the impact of the error term variance estimator. Our results confirm the findings of different authors that AIC and AICc favor nonlinear over linear models, whereas weighted versions of WIC and all versions of SIC are able to successfully distinguish linear and nonlinear models. However, the discrimination between different nonlinear model classes is more difficult. Nevertheless, the lag order selection is reliable. In general, information criteria involving the unbiased error term variance estimator overfit less and should be preferred to using the usual ML estimator of the error term variance.


Author(s):  
Sebastian Fossati

AbstractLatent factors estimated from panels of macroeconomic indicators are used to generate recession probabilities for the US economy. The focus is on current (rather than future) business conditions. Two macro factors are considered: (1) a dynamic factor estimated by maximum likelihood from a set of 4 monthly series; (2) the first of eight static factors estimated by principal components using a panel of 102 monthly series. Recession probabilities generated using standard probit, autoregressive probit, and Markov-switching models exhibit very different properties. Overall, a simple Markov-switching model based on the big data macro factor generates the sequence of out-of-sample class predictions that better approximates NBER recession months. Nevertheless, it is shown that the selection of the best performing model depends on the forecaster’s relative tolerance for false positives and false negatives.


2010 ◽  
Vol 2010 ◽  
pp. 1-25 ◽  
Author(s):  
Mouhacine Benosman

Fault tolerant control (FTC) is the branch of control theory, dealing with the control of systems that become faulty during their operating life. Following the systems classification, as linear and nonlinear models, FTC can be classified in two different groups, linear FTC (LFTC) dealing with linear models, and the one of interest to us in this paper, nonlinear FTC (NFTC), which deals with nonlinear models. We present in this paper a survey of some of the results obtained in these last years on NFTC.


2019 ◽  
Vol 24 (8) ◽  
pp. 1960-1988
Author(s):  
Xiaochun Liu

This paper studies asymmetric dynamics of real GDP growth by estimating linear and nonlinear quantile persistence over different parts of the conditional distribution for six major developed economies. Several novel quantile-based hypotheses are motivated in this paper and tested for the steepness asymmetry of real GDP growth that hypothesizes that contractions are steeper than expansions. The empirical results show that quantile persistence is generally high at far lower tails, thus requiring much longer half-lives to reverting negative deviations to the mean of real GDP growth and hence leading to gradual economic recoveries. By contrast, less persistence in far upper tails tends to generate sharp and short economic downturns that adjust positive deviations towards the mean of real GDP growth so as to cause abrupt economic recessions. In particular, this asymmetry in quantile persistence strongly supports the steepness asymmetry conjecture, robust to the presence of structural breaks and potential nonlinearities in real GDP growth.


2012 ◽  
Vol 28 (6) ◽  
pp. 1253 ◽  
Author(s):  
Kathleen Hodnett ◽  
Heng-Hsing Hsieh ◽  
Paul Van Rensburg

<span style="font-family: Times New Roman; font-size: small;"> </span><p style="margin: 0in 35.7pt 0pt 0.5in; text-align: justify; mso-layout-grid-align: none; mso-outline-level: 1;" class="MsoNormal"><span style="font-family: Times New Roman;"><span style="color: black; font-size: 10pt; mso-themecolor: text1; mso-fareast-language: ZH-HK;">This research investigates the relationship between firm-specific style attributes and the cross-section of equity returns on the JSE Securities Exchange (JSE) over the period from 1 January 1997 to 31 December 2007. Both linear and nonlinear stock selection models are constructed based on the cross-section of equity returns with firm-specific attributes as model inputs.</span><span style="color: black; mso-themecolor: text1; mso-fareast-language: ZH-HK;"><span style="font-size: small;"> </span></span><span style="color: black; font-size: 10pt; mso-themecolor: text1; mso-fareast-language: ZH-HK;">Both linear and nonlinear models identify book-value-to-price and cash flow-to-price as significant styles attributes that distinguish near-term future share returns on the JSE.</span><span style="color: black; mso-themecolor: text1; mso-fareast-language: ZH-HK;"><span style="font-size: small;"> </span></span><span style="color: black; font-size: 10pt; mso-themecolor: text1; mso-fareast-language: ZH-HK;">The risk-adjusted performance of the nonlinear models is found to be comparable with that of linear models.</span><span style="color: black; mso-themecolor: text1; mso-fareast-language: ZH-HK;"><span style="font-size: small;"> </span></span><span style="color: black; font-size: 10pt; mso-themecolor: text1; mso-fareast-language: ZH-HK;">In terms of artificial neural network modeling, the extended Kalman filter learning rule is found to outperform the traditional backpropagation approach. This finding is consistent with our prior findings on global stock selection.</span></span></p><span style="font-family: Times New Roman; font-size: small;"> </span>


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