Package index • gravity

All functions

bvu(): Bonus vetus OLS (BVU)

bvw(): Bonus vetus OLS (BVW)

ddm(): Double Demeaning (DDM)

discard_unusable(): Discard non-positive and/or non-finite observations in datasets

ek_tobit(): Eaton and Kortum (2001) Tobit model (EK Tobit)

et_tobit(): Eaton and Tamura (1995) threshold Tobit model (ET Tobit)

fixed_effects(): Fixed Effects

gpml(): Gamma Pseudo Maximum Likelihood (GPML)

gravity_no_zeros: Gravity dataset without zero trade flows

gravity_zeros: Gravity dataset without zero trade flows

hm_summary(): Head and Mayer consistent summary statistics

log_distance(): Apply logarithm to distance column

nbpml(): Negative Binomial Pseudo Maximum Likelihood (NBPML)

nls(): Non-linear Least Squares (NLS)

ols(): Ordinary Least Squares (OLS)

ppml(): Poisson Pseudo Maximum Likelihood (PPML)

sils(): Structural Iterated Least Squares (SILS)

tetrads(): Tetrads

tobit(): Left-censored Tobit model with known threshold