Results 141 to 150 of about 5,448,204 (257)
Agribusiness, EarlyView.ABSTRACT Brazil and the United States account for more than 40% of global poultry exports, with China and South Korea among their major destination markets. This study examines price transmission and market linkages between Brazil and the United States using monthly poultry export price data from January 1990 to December 2024. It also assesses which of
Khondoker Abdul Mottaleb +2 more
wiley +1 more source
Spectral Shaping for Codes with P.S.D. Expressed by Rational Functions
Advances in Electrical and Computer Engineering, 2008 Based on the fact that spectral shaping of digital data signals is obtained by encoding and that there exist spectrally equivalent digital filters, the method of Justesen was applied to derive digital filters that approximate the power spectral density ...
ALEXANDRU, N. D., ALEXANDRU, M. L.
doaj +1 more source
The limiting power of autocorrelation tests in regression models with linear restrictions [PDF]
It is well known that the Durbin-Watson and several other tests for first-order autocorrelation have limiting power of either zero or one in a linear regression model without an intercept, and tend to a constant lying strictly between these values when ...
Wan, Alan, Zou, Guohua, Banerjee, Anurag
core
Residual autocorrelation and partial autocorrelation of GAM and MGAM with dft = 6.
, 2013 Upper left is the autocorrelation function (ACF) of GAM residuals. Upper right is the ACF of MGAM residuals. Lower left is the partial autocorrelation function (PACF) of GAM residuals. Lower right is the PACF of MGAM residuals.
Yanyan Song (408130) +7 more
core +1 more source
Deforestation and Efficiency: Insights From Forest Transition in the Brazilian Cerrado
Agribusiness, EarlyView.ABSTRACT This paper estimates technical efficiency (TE) and environmental efficiency (EE) of agricultural production at the municipal level of the Brazilian Cerrado in 2006 and 2017, and investigates their underlying mechanisms in relation to forest transition theory.
Ricardo Muniz Simões +2 more
wiley +1 more source
Partial autocorrelation function of the log-returns of the exchange rate of Bitcoin.
, 2015 Partial autocorrelation function of the log-returns of the exchange rate of Bitcoin.
Stephen Chan (346637) +2 more
core +1 more source
Agribusiness, EarlyView.ABSTRACT Since the final decade of the 20th century, Latin American countries have increasingly regarded the signing of regional trade agreements (RTAs) as a promising strategy for expanding their exports. Within this context, the main objective of this study is to assess the impact of RTAs on agri‐food exports in Latin America over the period 1990 ...
María‐Isabel Ayuda +2 more
wiley +1 more source
Testing for no autocorrelation using a modified Lobato test [PDF]
This paper suggests modifying the Lobato test for no autocorrelation by using the bandwidth parameter (M) of the covariance estimator as a fixed proportion of the sample size (T): M=bT, where b (0,1] is a constant.
Jen-Je Su
core
Agribusiness, EarlyView.ABSTRACT The U.S. Department of Agriculture's (USDA) World Agricultural Supply and Demand Estimates (WASDE) play a central role in how agricultural commodity markets process information about supply, demand, and prices. This study examines how global and domestic shocks, as well as policy interventions, are reflected in the similarity of WASDE ...
Zhining Sun +2 more
wiley +1 more source
Blind SNR estimation for OFDM signals in cognitive radio
Tongxin xuebao, 2011 The traditional blind SNR estimation algorithms had problems of poor performance and high computation complexity for OFDM systems in cognitive radio with low signal to noise ratio(SNR)and multi-path channel conditions,in view of which a novel blind SNR ...
Ming-qian LIU +3 more
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