Table V.

Definition of variables for model of the price of antimalarial tablets in shops

Variable	Definition	Means
Dependent variable
Log_price_AM	Log of price for child’s dose of antimalarial tablets (Tsh)	5.29
Independent continuous variables
HHI volume	Hirschman Herfindahl index for private sector antimalarial sales volumes by sub market	0.31
HHI value	Hirschman Herfindahl index for private sector antimalarial sales values by sub market	0.38
Independent dummy variables
Antimalarial type
Chloroquine (omitted)	1 if antimalarial is chloroquine	0.22
Amodiaquine	1 if antimalarial is amodiaquine	0.24
Quinine	1 if antimalarial is quinine	0.14
SP	1 if antimalarial is SP	0.40
Type of packaging:
Loose (omitted)	1 if tablets are sold loose	0.31
Packaged	1 if tablets are sold packaged	0.69
Country of manufacturea:
Tanzania (omitted)	1 if manufactured in Tanzania	0.37
Other_Africa	1 if manufactured in another African country	0.40
Asia	1 if manufactured in Asia	0.08
Europe	1 if manufactured in Europe	0.15
Brand status:
Unbranded_generic (omitted)	1 if unbranded generic	0.25
Innovatora	1 if innovator brand	0.09
Branded_generic	1 if branded generic	0.66
District:
Kilombero (omitted)	1 if in Kilombero DSS	0.29
Ulanga	1 if in Ulanga DSS	0.07
Rufiji	1 if in Rufiji DSS	0.64
Outlet type:
Drug store (omitted)	1 if outlet is a commercial drug store	0.79
General_store	1 if outlet is a general store	0.21
Outlet location:
Market_centre (omitted)	1 if outlet is in market centre	0.55
Rural_area	1 if outlet is in rural area	0.45

^aInnovator brands are those first authorised worldwide for marketing (normally as a patented product); among antimalarials in this study this only applied to Fansidar™ and Metakelfin™, both innovator brands for SP.

Source: Outlet Survey Nov Dec 2001, HHI from Retail Audits Feb/Apr and Jun/Jul 2002.