Results 11 to 20 of about 879,913 (298)
BMC Plant Biology, 2022 Background Alhagi sparsifolia (Camelthorn) is a leguminous shrub species that dominates the Taklimakan desert’s salty, hyperarid, and infertile landscapes in northwest China. Although this plant can colonize and spread in very saline soils, how it adapts
Abd Ullah +10 more
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Persistence in carbon footprint emissions: an overview of 92 countries
Carbon Management, 2019 The existing studies on persistence of ecological footprint have largely concentrated on the aggregate ecological footprint without adequately considering its components.
Sakiru Adebola Solarin +2 more
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A Parameterization of Models for Unit Root Processes: Structure Theory and Hypothesis Testing
Econometrics, 2020 We develop and discuss a parameterization of vector autoregressive moving average processes with arbitrary unit roots and (co)integration orders. The detailed analysis of the topological properties of the parameterization—based on the state space ...
Dietmar Bauer +3 more
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Asymmetric Convergence in Globalization? Findings from a Disaggregated Analysis [PDF]
Managing Global Transitions, 2016 Using the KOF index of globalization that allows for the multidimensionality of the process, the paper sets out to examine the presence of convergence among countries in the three dimensions of the globalization process: economic, social, political ...
Paschalis Arvanitidis +2 more
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Modeling seasonality: An extension of the HEGY approach in the presence of two structural breaks [PDF]
Panoeconomicus, 2008 In this paper the HEGY testing procedure (Hylleberg et al. 1990) of analyzing seasonal unit roots is tried to be re-examined by allowing for seasonal mean shifts with exogenous break points. Using some Monte Carlo experiments the distribution of the HEGY
Tasseven Ozlem
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Unit roots in macroeconomic time series: theory, implications, and evidence [PDF]
Nova Economia, 2005 The theme of unit roots in macroeconomic time series has received a great amount of theoretical and applied research in the last two decades. This paper presents some of the main issues regarding unit root tests, explores some of the implications for ...
Gilberto Libanio
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Efficient wald tests for fractional unit roots [PDF]
, 2007 In this article we introduce efficient Wald tests for testing the null hypothesis of the unit root against the alternative of the fractional unit root.
Lobato, Ignacio N., Velasco, Carlos
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Cells, 2022 More efficient use of soil resources, such as nitrogen (N) and phosphorus (P), can improve plant community resistance and resilience against drought in arid and semi-arid lands.
Akash Tariq +8 more
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Stationarity of seasonal patterns in weekly agricultural prices
Spanish Journal of Agricultural Research, 2018 Weekly series of agricultural prices usually exhibit seasonal variations and the stationarity of these variations should be taken into account to analyse price relationships.
José J. Cáceres-Hernández +1 more
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Power comparison among tests for fractional unit roots [PDF]
, 2008 This article compares the asymptotic power properties of the Wald, the Lagrange Multiplier and the Likelihood Ratio test for fractional unit roots. The paper shows that there is an asymptotic inequality between the three tests that holds under fixed ...
Lobato, Ignacio N., Velasco, Carlos
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