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Analysis of time series to examine the impact of the EU Timber Regulation (EUTR) on European timber trade

Georg Becher

No 134, Thünen Working Papers from Johann Heinrich von Thünen Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries

Abstract: The objective of the EU Timber Regulation (EUTR), enforced since March 2013, is for importers and exporters to commit to reducing the risk of trading timber products from illegal sources in the EU. EUROSTAT time series on monthly trade with wood products from January 1988 to August 2016 were used to monitor the law's impact. The time series, subdivided into sections before and after the implementation of EUTR, were investigated in time and frequency domains. The analyses in the time domain indicated the adequateness of the AR (1) and ARMA (1, 1) models. As the confidence intervals for their estimates before and after EUTR do not overlap, the respective time series are considered as different and the influence of EUTR legislation probable (also confirmed by the significant models with EUTR as intervening event). Long term variation of the monthly time series (March 2013 to August 2016) show an increasing linear trend for all wood products and for wood products with tropical woods excluded. Since EU imports of tropical wood were falling before EUTR, the stagnant imports thereafter are judged as uncertainty and time the markets need to adapt to a new legislative situation. The analyses in frequency domain based on inference from periodogram revealed cycles of 3, 4, 6 and 12 months, except for time series of tropical wood imports after EUTR. If cycles are thought of as inherent to import time series, this lack in tropical wood imports can be an indication of a 'wait-and-see' attitude of importers as a consequence of EUTR.

Keywords: illegale Holznutzung; Zeitreihenanalyse; Interventionsmodell; illegal logging; time series analysis; periodogram; intervention model (search for similar items in EconPapers)
Date: 2019
New Economics Papers: this item is included in nep-int
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