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035   $a(NBER)w20088
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100   $a20230622d2014      fy             0
101 0 $aeng
135   $aurcnu||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aBanning Foreign Pharmacies from Sponsored Search$eThe Online Consumer Response /$fMatthew Chesnes, Weijia (Daisy) Dai, Ginger Zhe Jin
210   $aCambridge, Mass$cNational Bureau of Economic Research$d2014
210  1$aWashington, DC :$cBureau of Economics, Federal Trade Commission,$d2014.
215   $a1 online resource$cillustrations (black and white);
225 1 $aNBER working paper series$vno. w20088
300   $aMay 2014.
320   $aIncludes bibliographical references (pages 26-28).
330 3 $aIncreased competition from the internet has raised concerns about the quality of prescription drugs sold online. Given the pressure from the Department of Justice, Google agreed to ban pharmacies not certified by the National Association of Boards of Pharmacy (NABP) from sponsored search listings. Using comScore click-through data originated from health-related queries, we study how the ban affects consumer search and click behavior in a difference-in-differences framework using the synthetic control method. We find that non-NABP-certified pharmacies receive fewer clicks after the ban and this effect is heterogeneous. In particular, pharmacies not certified by the NABP, but certified by other sources (other-certified websites), experience an increase in organic clicks that partially offsets the loss in paid clicks after the ban. In contrast, pharmacies not certified by any certification agencies experience much lower rates of substitution in organic clicks. These results suggest that the ban has increased the search cost for other-certified websites, but at least some consumers overcome the search cost by switching from sponsored to organic links. The lower substitution for uncertified websites may be explained by the rising consumer concerns about the quality of drugs sold on uncertified websites after the ban.
410  0$aWorking Paper Series (National Bureau of Economic Research)$vno. w20088.
517   $aBanning Foreign Pharmacies from Sponsored Search 
606   $aSearch ? Learning ? Information and Knowledge ? Communication ? Belief ? Unawareness$2jelc
606   $aGovernment Policy ? Regulation ? Public Health$2jelc
606   $aEnergy, Environmental, Health, and Safety Law$2jelc
606   $aRetail and Wholesale Trade ? e-Commerce$2jelc
615  7$aSearch ? Learning ? Information and Knowledge ? Communication ? Belief ? Unawareness
615  7$aGovernment Policy ? Regulation ? Public Health
615  7$aEnergy, Environmental, Health, and Safety Law
615  7$aRetail and Wholesale Trade ? e-Commerce
686   $aD83$2jelc
686   $aI18$2jelc
686   $aK32$2jelc
686   $aL81$2jelc
700   $aChesnes$b Matthew$01366410
701   $aDai$b Weijia ($01366411
701   $aJin$b Ginger Zhe$01366412
712 02$aNational Bureau of Economic Research.
801  0$bMaCbNBER
801  1$bMaCbNBER
906   $aBOOK
912   $a9910708149803321
996   $aBanning Foreign Pharmacies from Sponsored Search$93389016
997   $aUNINA