Dwayne Benjamin

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* This paper is part of a World Bank project investigating the impact of economic reforms on households in Vietnam. The opinions expressed are solely those of the authors, and do not represent the opinions of the World Bank or the Government of Vietnam. We thank Daniel Lee for exceptional research assistance, the Social Sciences and Humanities Research(More)
The astonishing increase in computer performance over the past two decades has made it possible for economists to base many statistical inferences on simulated, or bootstrap, distributions rather than on distributions obtained from asymptotic theory. In this paper, I review some of the basic ideas of bootstrap inference. The paper discusses Monte Carlo(More)
Contrary to an earlier report [Anstis and Gregory, Q. Jl exp. Psychol. 17, 173-174 (1965)], we find that the sustained retinal motion caused by tracking a moving target over a stationary grating does not result in a motion aftereffect (MAE) which is equivalent to that resulting from comparable retinal motion caused by actual motion of a grating. The MAE(More)
Deborah Davis-Friedmann (1991) described the " retirement " pattern of the Chinese elderly in the pre-reform era as " ceaseless toil " : lacking sufficient means of support, the elderly had to work their entire lives. In this paper we re-cast the metaphor of ceaseless toil in a labor supply model, where we highlight the role of age and deteriorating health.(More)
Worswick for their comments. Benjamin and Brandt thank the SSHRC for financial support. We also thank IDRC for their financial support of the collaborative data collection efforts with the Research Center for Rural Economy in Beijing. Abstract This paper investigates the consequences of imperfect and uneven factor market development for farm efficiency in(More)
This is a revised version of a paper prepared for the IEA World Congress panel sessions on " Global Inequality: Where Are We and Where Are We Headed, " Buenos Aires, August 23-27, 1999. We thank Richard Freeman and conference participants for comments. Benjamin and Brandt thank the SSHRC for financial support. Abstract Market reforms are generally credited(More)
The farm household model has played a central role in improving the understanding of small-scale agricultural households and non-farm enterprises. Under the assumptions that all current and future markets exist and that farmers treat all prices as given, the model simplifies households' simultaneous production and consumption decisions into a recursive form(More)
We develop a procedure to estimate poverty counts in India from the 55 th Round of the National Sample Survey (NSS), a large household survey run in 1999-2000. The evidence suggests that a change in the survey design caused the reports on household expenditure to change to an extent that it is impossible, without adjustments, to compare poverty estimates(More)
IL-7 was originally reported as a cytokine produced by stromal cells which supports pre-B cell proliferation in vitro. To determine whether human B cells secrete IL-7 and express IL-7R we studied a wide panel of B cell lines (CLS). In Northern blot analysis we detected 2.4 kb IL-7 mRNA and by quantitative PCR we demonstrated IL-7 expression in 5 of 6 B CLS(More)