Time-varying parameter energy demand functions: Benchmarking state-space methods against rolling-regressions

2019 ◽  
Vol 82 ◽  
pp. 26-41 ◽  
Author(s):  
Aynur Alptekin ◽  
David C. Broadstock ◽  
Xiaoqi Chen ◽  
Dong Wang
2019 ◽  
Vol 26 (4) ◽  
pp. 598-621 ◽  
Author(s):  
Elisa Jorge-González ◽  
Enrique González-Dávila ◽  
Raquel Martín-Rivero ◽  
Domingo Lorenzo-Díaz

Tourism forecasting plays a major role in tourism planning and management and it is one of the main economic activities in many countries. For this reason, it is fundamental to provide several models that allow describing and forecasting the tourist demand. International visitants who arrive at a certain tourist destination may come from countries or regions with similar or different customs and behaviours and therefore be able to present correlated arrival patterns. Based on the state-space methods with time-varying parameters, this study develops the application and comparison of univariate and multivariate models in the applied case of German and British tourist at Canary Islands (Spain). The choice of model can be conditioned by the volume of tourists from one country with respect to the other. Structural models will be used incorporating intervention and exogenous variables, among which airline seat reservations for regular flights.


Author(s):  
Ekta Hooda ◽  
B. K. Hooda

Forecasting of agricultural outputs well in advance has always been the focus of numerous researchers due to its direct implications on various areas of the society. This study aims to develop State Space Models (SSMs) with weather as an exogenous input over the commonly used ARIMA and regression analysis for yield prediction for mustard crop in eight districts of Haryana state in India. These models are time-varying parameter models and take into account for changes that are known over time in structure of the framework. SSMs with various kinds of growth trends were tried and model performances were compared using AIC and BIC criteria but the growth trend represented by polynomial splines of order-2 with the weather as an exogenous input was chosen as the most appropriate model for mustard yield prediction in all the eight districts under study. Based on the developed models, post-sample yield predictions for the next three years, i.e. 2016-17 to 2018-19 have been obtained and the deviations from actual values are also calculated which came out to be acceptable in an agricultural setup.


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