TY  - JOUR
TI  - An Examination of Trends in Geographic Concentration in U.S. Hog 
Production, 1974-96 
T2  - Journal of Agricultural and Applied Economics
IS  - 2
KW  - аграрная экономика
KW  - концентрация
KW  - развитие сельского хозяйства
KW  - сельское хозяйство
AB  - Geographic concentration in US. hog production from 1974-96 is 
investigated using a measure based on Theil's entropy index. For the 
U.S. as a whole, geographic concentration is occurring at a slow 
rate, both for hog farms and hog numbers. However, for particular 
states, primarily in the new Southern Atlantic production region, 
concentration is high and increasing at a rapid pace. Concentration 
was increasing for the 23-year period for 16 out of the 20 states in 
the analysis. Results indicate that geographic concentration by 
augmentation is occurring to the greatest degree in Arkansas, 
Missouri, North Carolina, Oklahoma, and Pennsylvania. 
AU  - Hubbell, B.J.
AU  - Welsh, Rick
UR  - http://ecsocman.hse.ru/text/18489315/
PY  - 2004
SP  - 285-299
M2  - 285
VL  - 30
SN  - 
N1  - 
LA  - EN
CY  - 
PB  - 
M3  - 
LB  - 
VL  - 
ER  -