Are Farm Size Distributions Bimodal? Evidence from Kernel Density Estimates of Dairy Farm Size Distributions

One often hears and sees reference to bimodal distributions of farm size. This notion seems to have become one of the stylized facts about American agriculture. Dairy farm size distributions are prime candidates to exhibit a bimodal size distribution. Older dairy farms tend to be significantly smaller than new dairy farms and there are well known regional size differences. Nonetheless, our analysis of 1989 and 1993 U.S. dairy farm size distributions, using nonparametric density estimation techniques, reveals that U.S. dairy farm size distributions are not bimodal. This result holds across years for herd size, total farm sales, and acres operated. Copyright 2001, Oxford University Press.

[1]  R. Mittelhammer.  Mathematical Statistics for Economics and Business , 1996 .

[2]  Bruce F. Hall,et al.  Farm Size and Economic Efficiency: The Case of California , 1978 .

[3]  I. Salgado-Ugarte,et al.  Exploring the shape of univariate data using kernel density estimators , 1994 .

[4]  Daniel A. Sumner,et al.  An Econometric Analysis of the Effects of Human Capital on Size and Growth among Dairy Farms , 1987 .

[5]  F. Dovring.  Distribution of Farm Size and Income: Analysis by Exponential Functions , 1973 .

[6]  A. Winsor.  Sampling techniques. , 2000, Nursing times.

[7]  P. Allanson.  Farm size structure in England and Wales 1939-89 , 1992 .

[8]  Ching-Cheng Chang,et al.  Specification and estimation of asymmetric adjustment rates for quasi-fixed factors of production , 1988 .

[9]  Clark Edwards,et al.  The Changing Distribution of Farms by Size: A Markov Analysis , 1985 .

[10]  Jerome W. Hammond.  Trends In The Size Distribution Of Dairy Farms In Minnesota And Wisconsin , 1994 .

[11]  R. Boxley.  Farm Size and the Distribution of Farm Numbers , 1971 .

[12]  J. Wolfe.  PATTERN CLUSTERING BY MULTIVARIATE MIXTURE ANALYSIS. , 1970, Multivariate behavioral research.

[13]  Jean-Paul Chavas,et al.  A dynamic analysis of the size distribution of firms: the case of the US dairy industry , 1988 .

[14]  S. Sonka,et al.  Farm Size, Tenure, and Economic Efficiency in a Sample of Illinois Grain Farms , 1982 .

[15]  Lydia Zepeda,et al.  Asymmetry and Nonstationarity in the Farm Size Distribution of Wisconsin Milk Producers: An Aggregate Analysis , 1995 .

[16]  P. J. Green,et al.  Density Estimation for Statistics and Data Analysis , 1987 .

[17]  C. F. Wu,et al.  Resampling Inference with Complex Survey Data , 1988 .

[18]  James B. McDonald,et al.  Some Generalized Functions for the Size Distribution of Income , 1984 .

[19]  C. Weiß.  Farm Growth and Survival: Econometric Evidence for Individual Farms in Upper Austria , 1999 .

[20]  J. Kruskal,et al.  SUBPOPULATIONS OF BLOOD LYMPHOCYTES DEMONSTRATED BY QUANTITATIVE CYTOCHEMISTRY , 1971, The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society.