▁were ▁already ▁noted ▁by ▁Br ander ▁and ▁Sp encer ▁in ▁their ▁paper , ▁where ▁they ▁ad vised ▁ca ution . ▁ ▁Further ▁work ▁on ▁the ▁model ▁has ▁shown ▁that ▁a ▁slight ▁difference ▁in ▁assumptions ▁can ▁produce ▁completely ▁different ▁results . ▁For ▁example , ▁E aton ▁and ▁G ross mann ▁showed ▁that ▁if ▁the ▁fir ms ▁comp ete ▁in ▁prices ▁rather ▁in ▁quantities ▁( Ber tr and ▁competition ▁rather ▁than ▁Cour not ) ▁then ▁the ▁optimal ▁policy ▁is ▁an ▁export ▁tax ▁rather ▁a ▁subs id y ▁– ▁a ▁policy ▁rarely ▁used ▁in ▁practice , ▁polit ically ▁un pop ular ▁and ▁contrary ▁to ▁protection ist ▁sentiment ▁which ▁generally ▁tout ed ▁New ▁Trade ▁Theory ▁models ▁as ▁an ▁argument ▁for ▁their ▁fav ored ▁policies . ▁ ▁In flu ence ▁The ▁ 1 9 8 5 ▁paper ▁" Export ▁Sub s id ies ▁and ▁International ▁Market ▁Share ▁R ival ry ", ▁which ▁presented ▁the ▁original ▁version ▁of ▁the ▁model , ▁was ▁the ▁most ▁c ited ▁paper ▁in ▁the ▁Journal ▁of ▁International ▁Econom ics ▁since ▁the ▁in ception ▁of ▁the ▁journal ▁in ▁ 1 9 7 1 ▁( as ▁of ▁ 2 0 0 0 ). ▁ ▁Notes ▁and ▁references ▁ ▁Notes ▁ ▁References ▁ ▁Works ▁c ited ▁ ▁Category : Math emat ical ▁econom ics ▁Category : Intern ational ▁trade ▁theory ▁Category : E conom ics ▁models ▁Category : 1 9 8 0 s ▁in ▁science <0x0A> </s> ▁Vitt orio ▁Tri ar ico ▁T ate o ▁( born ▁ 2 4 ▁May ▁ 1 9 8 9 )