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El Niño southern oscillation and its effects on world vegetable oil prices: assessing asymmetries using smooth transition models
Ubilava, David, (2013)
El Niño southern oscillation and its effects on world vegetable oil prices : assessing asymmetriies using smooth transition models
Modeling nonlinearities in the US soybean-to-corn price ratio : a smooth transition autoregression approach
Ubilava, David, (2012)