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Can voluntary product-labeling replace trade bans in the case of GMOs?

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Discussion Papers No. 485, October 2006 Statistics Norway, Research Department

Mads Greaker and Yuyu Chen

Can voluntary product-labeling replace trade bans in the case of GMOs?

Abstract:

Genetically modified (GM) food has raised both health-risk fears and environmental concerns. This has led some countries to ban the trade in such food triggering a great deal of controversy among countries. In this paper we ask under what conditions will voluntary labeling of GM-free food be at least as good as a trade ban? And, under what conditions can providing labels for GM-free food be protectionist? Our main finding is that the merits of a product labeling policy depend crucially on the way food products are differentiated. If they are poorly differentiated from the beginning, a labeling policy will probably not function as good as a trade ban does; while if they are already well

differentiated, a labeling policy is likely the optimal policy for the importing country. Finally, as long as consumers' willingness to pay to avoid GM-food is high, a labeling policy is not protectionist. In fact, if products are poorly differentiated from the beginning, foreign firms will probably increase their profit even if they do not choose to label their products.

Keywords: Product-labeling, GMOs, protectionsim, trade policy JEL classification: H2, H7, Q2, Q28

Acknowledgement: The authors are grateful to Senior Research Fellow Iulie Aslaksen for her very helpful and valuable comments on earlier drafts.

Address: Mads Greaker, Statistics Norway, Research Department. E-mail: mgr@ssb.no

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(7)

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(8)

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(9)

/.35-'23

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H<9 6CHHCA @=B9 =B H<9 IB=H GEI5F9 .<9 ;FCGG IH=@=HM :FCA 7CBGIA=B; CB9 IB=H C: H<9 8CA9GH=7 DFC8I7H @C75H98 5H C: 5 7CBGIA9F @C75H98 5H =G H<9B

K<9F9 H<9 H9FA =G H<9 @CGG =B IH=@=HM C: BCH 69=B; 56@9 HC ;9H 5 DFC8I7H

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=: H<9 7CBGIA9F 75B 69 GIF9 H<5H H<9 DFC8I7H =G F95@@M !':F99 K<=7< =G H<9 75G9 =: 5 !':F99 @569@ =G C6G9FJ98 CB H<9 DFC8I7H CF =: :CC8 7CBH5=B=B; !'

=BDIHG =G 65BB98 6M H<9 ;CJ9FBA9BH

1=H< DC=BH C: 89D5FHIF9 =B H<9 "CH9@@=B; AC89@ =H 75B 69 G<CKB H<5H DFC8I79FG K=@@

7<CCG9 HC A5L=A=N9 H<9=F DFC8I7H 8=W9F9BH=5H=CB ;=J9B EI58F5H=7 HF5BGDCFH5H=CB 7CGHG G99 .=FC@9 D 34 19 5GGIA9 EI58F5H=7 HF5BGDCFH5H=CB 7CGHG G99 69@CK

(10)

.<9 D5F5A9H9F =G 5 7CBGH5BH IH=@=HM H9FA K<=7< 5@@ 7CBGIA9F 89F=J9G :FCA 7CBGIA=B; CB9 IB=H C: :CC8 #H =G A95GIF98 9L HF5BGDCFH7CGHG 5B8 :CF 5 DFC8I7H 7CBH5=B=B; !'=BDIHG

-=A=@5F@M H<9 ;FCGG IH=@=HM C: H<9 7CBGIA9F 5H :FCA 7CBGIA=B; CB9 IB=H C: H<9 :CF9=;B DFC8I7H @C75H98 5H =G

K<9F9 H<9 H9FA 89BCH9G H<9 @CGG =B IH=@=HM C: BCH 69=B; 56@9 HC ;9H 5 DFC8I7H @C75H98 5H K<9B 6IM=B; :FCA H<9 :CF9=;B PFA

&9H 89BCH9 =B8=J=8I5@ 7CBGIA9FSG GIFD@IG K<=7< =G H<9 8=W9F9B79 69 HK99B 7CBGIA9FSG K=@@=B;B9GG HC D5M 5B8 H<9 DF=79 57HI5@@M D5=8 =9 CBGIA9FG A5?9 H<9=F DIF7<5G9 897=G=CBG 6M A5L=A=N=B;

H<9=F GIFD@IG 19 75@@ H<9 7CBGIA9F K<C =G =B8=W9F9BH 69HK99B 6IM=B; DFC8 I7H 5B8 * #( $" %$)+#( 5B8 89BCH9 H<9 @C75H=CB C: H<9 A5F;=B5@

7CBGIA9F 6M .<9 @C75H=CB C: H<9 A5F;=B5@ 7CBGIA9F 75B 69 :CIB8 6M 9EI5@=N=B; H<9 GIFD@IG :FCA 6IM=B; DFC8I7H 5B8 :FCA DFC8I7H 1<9B DFC8I7HG 5F9 9EI5@ K=H< F9GD97H HC !' 7CBH9BH K9 C6H5=B :CF H<9 @C75H=CB C:

H<9 A5F;=B5@ 7CBGIA9F

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=89BH=75@ D5FHG C: G=N9 @@ 7CBGIA9FG HC H<9 @9:H C: H<9 @=B9 ;=J9B 6M 6IM H<9 8CA9GH=7 DFC8I7H 5B8 5@@ 7CBGIA9FG HC H<9 F=;<H C: H<9 @=B9 ;=J9B 6M 6IM H<9 :CF9=;B DFC8I7H .<9 8=J=G=CB C: H<9 A5F?9H =G $&$$* C:G=B79 6CH< DFC8I7HG 5F9 9=H<9F !':F99 CF !' 7CBH5=B=B;

1<9B DFC8I7HG 5F9 8=W9F9BH K=H< F9GD97H HC !' 7CBH9BH K9 C6H5=B

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<5J9 8F5KB H<9 @=B9 8=J=8=B; H<9 A5F?9H ;=J9B 6M =B H<9 HKC 75G9G C:

%( 0%$*" %# $* %$ 5B8,(* " %# $* %$ 5G 9LD@5=B98 69@CK

(11)

=;IF9 .<9 8=J=G=CB C: H<9 A5F?9H

Horizontal domination

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1

x

λ

Vertical domination

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1

0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1

x

λ

#B =;IF9 H<9 8CA9GH=7 PFA DFC8I79G !':F99 5B8 H<9 :CF9=;B PFA DFC8I79G K=H< !' =BDIHG @@ H<9 7CBGIA9FG HC H<9 @9:H C: H<9 @=B9 89PB98 6M 6IM H<9 8CA9GH=7 DFC8I7H K<9F95G 5@@ H<9 7CBGIA9FG HC H<9 F=;<H C:

H<9 @=B9 6IM H<9 :CF9=;B DFC8I7H (CH9 H<5H K9 5GGIA9 GI7< H<5H 5 7CBGIA9F @C75H98 5H K=@@ CB@M 6IM :FCA PFA =: <9F

1<9B DFC8I7HG 5F9 K9@@ 8=W9F9BH=5H98 :FCA H<9 69;=BB=B; =9 =G <=;<

7CAD5F98 HCGI7< H<5H H<9 A5F?9H K=@@ 69 8=J=898 5G =B H<9 @9:H D5FH C: H<9 P;IF9 @569@98 <CF=NCBH5@ 8CA=B5H=CB K<=@9 K<9B DFC8I7HG 5F9 DCCF@M 8=W9F9BH=5H98 :FCA H<9 69;=BB=B; =9 H<9 A5F?9H K=@@ 69 8=J=898 5G

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(12)

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(13)

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(14)

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(15)

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(16)

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From the above review of protection initiatives, three recurring issues can be discerned as particularly relevant for military contributions to protection activities: (i) the need

An abstract characterisation of reduction operators Intuitively a reduction operation, in the sense intended in the present paper, is an operation that can be applied to inter-

The article «A Panel Data Study of Physicians' Labor Supply: The Case of Norway» studies the labor supply of physicians employed at Norwegian hospitals.. The authors estimate a

Hence, we assume that labor supply and choice of child care are outcomes of discrete choices from finite sets of jobs and child care arrangements, where each job is assumed to

38 Simulation results obtained by the restricted model (without endogenous labor supply of fathers) show a better fit to the quasi-experimental evidence for the mothers of

Relying on a microsimulation approach, based on a discrete choice joint labor supply and child care choice model, we have assessed the effects on labor supply of mothers of

In families where mothers work (part-time, full-time or overtime) despite the fact that the family makes no use or less than full-time use of center-based care, we see that fathers