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Scarcity nationalism during COVID-19 : identifying the impact on trade costs

Egger, Peter; Masllorens, Gerard; Rocha, Nadia; Ruta, … - In: Economics letters 223 (2023), pp. 1-4

Persistent link: https://www.econbiz.de/10014234174

Return seasonalities in government bonds and macroeconomic risk

Mikutowski, Mateusz; Karathanasopoulos, Andreas; … - In: Economics letters 176 (2019), pp. 114-116

Persistent link: https://www.econbiz.de/10012121248

The relationship between parameters within a latent variable framework

Heckman, James J.; Vytlacil, Edward - In: Economics letters 66 (2000) 1, pp. 33-39

Persistent link: https://www.econbiz.de/10001435921

Using matching, instrumental variables and control functions to estimate economic choice models

Heckman, James J.; Navarro, Salvador - 2003 - Final draft January, 2003

This paper investigates four topics. (1) It examines the different roles played by the propensity score (probabilitiy of selection) in matching, instrumental variable and control functions methods. (2) It contrasts the roles of exclusion restrictions in matching and selection models. (3) It...

Persistent link: https://www.econbiz.de/10011572173