@article{FREEDMAN:1994:HACAFT,
   AUTHOR = {Freedman, David A. and Wachter, K.W.},
    TITLE = {Heterogeneity and census adjustment for the intercensal base},
  JOURNAL = {Statistical Science},
   VOLUME = {9},
     YEAR = {1994},
    PAGES = {476--485},
       ID = {info:doi/10.1214/ss/1177010260},
 ABSTRACT = {Current techniques for census adjustment involve the ``synthetic
             assumption'' that undercount rates are constant within ``post-
             strata'' across geographical areas. A poststratum is a subgroup of
             people with given demographic characteristics; poststrata are
             chosen to minimize heterogeneity in undercount rates. This paper
             will use 1990 census data to assess the synthetic assumption. We
             find that heterogeneity within poststrata is quite large, with a
             corresponding impact on local undercount rates estimated by the
             synthetic method. Thus, any comparison of error rates between the
             census and adjusted counts should take heterogeneity into account.},
   }

        

@article{WACHTER:1994:TCFMWS:0873.92037,
   AUTHOR = {Wachter, K.W.},
    TITLE = {The cohort feedback model with symmetric net maternity},
  JOURNAL = {Mathematical Population Studies},
     ISSN = {0889-8480},
   VOLUME = {5},
     YEAR = {1994},
    PAGES = {25--44},
ZBLABSTRACT = {Demographic cohort feedback models were introduced by {\it R. D.
             Lee} [Demography 11, 563-585 (1974)]. In these nonlinear models, a
             cohort's net reproduction ratio responds inversely to cohort size
             at birth, while the shape of the net maternity function remains
             constant. For certain response strengths such a model leads to
             sustained cycles in the trajectory of births.\par Suppose that the
             net maternity function is symmetric under reflection around some
             mean age of childbearing. I prove that the model then has cyclic
             solutions with period exactly equal to twice the mean age of
             childbearing not merely in a neighborhood of equilibrium but for a
             range of parameter values which is unbounded in a certain suitable
             sense. Sobolev space methods are introduced for the theorem's
             proof. This ``global'' bifurcation theorem for the cohort feedback
             model with symmetric net maternity provides a benchmark case for
             understanding the characteristics of nonlinear population waves of
             realistic size.},
 ZBLCLASS = {91D20;92D25},
       ID = {info:zbl/0873.92037},
   }

        

@article{TULJAPURKAR:1994:NFDIFA,
   AUTHOR = {Tuljapurkar, Shripad and Boe, Carl and Wachter, Kenneth W.},
    TITLE = {Nonlinear feedback dynamics in fisheries: Analysis of the
             {D}eriso--{S}chnute model},
  JOURNAL = {Canadian Journal of Fisheries and Aquatic Sciences},
   VOLUME = {51},
     YEAR = {1994},
    PAGES = {1462--1473},
 ABSTRACT = {Fishery models of the Deriso--Schnute form are based on the
             dynamics of an age-structured population, together with a nonlinear
             stock-recruitment relationship. Cyclical dynamics are commonly
             observed in fisheries and have been attributed to feedback between
             stock and recruitment. In this paper, we do four things. First, we
             present analytical results on sustained oscillations driven by
             nonlinear recruitment. These results show explicitly how density
             dependence near equilibrium determines the character of sustained
             population oscillations. Second, we briefly characterize the
             dynamics of the Deriso--Schnute model when the density-dependent
             response becomes very strong. We find that the Deriso--Schnute
             model displays sustained, complex (probably chaotic) variability of
             large magnitude, but only typically when reproduction is
             concentrated at very few ages. Third, we dissect the nature of
             density dependence in recruitment, contrasting a ``local'' view
             that uses information about response to small variations in stock
             with a ``global'' view that uses a function such as Schnute's over
             the entire range of stock levels. Finally, we argue that the global
             approach leads to practical and theoretical difficulties and that a
             local view may be more biologically realistic.},
       ID = {info:doi/10.1139/f94-146},
   }

        

@incollection{MERRIAM:1994:AOTTCO,
   AUTHOR = {Merriam, George R. and Wachter, Kenneth W.},
    TITLE = {Analysis of the temporal coincidence of hormonal pulses},
   EDITOR = {Levine, Jon E.},
BOOKTITLE = {Pulsatility in Neuroendocrine Systems},
     ISBN = {012185289X,9780121852894},
     YEAR = {1994},
PUBLISHER = {Academic Press},
  ADDRESS = {San Diego, CA},
    PAGES = {326--335},
  EDNOTES = {<version1>According to one online ref, this was also published in
             "Methods Neurosci 1994; 20:326--335", though it is unclear which
             journal that is - couldn't corroborate.},
   }

        

@article{FREEDMAN:1994:ATCOLF,
   AUTHOR = {Freedman, David A. and Wachter, K.W. and Cutler, R. and Klein, S.},
    TITLE = {Adjusting the census of 1990: Loss Functions},
  JOURNAL = {Evaluation Review},
   VOLUME = {18},
     YEAR = {1994},
    PAGES = {243--280},
       ID = {info:doi/10.1177/0193841X9401800301},
 ABSTRACT = {Considering the difficulties, the Census Bureau does a remarkably
             good job at counting people. This article discusses techniques for
             adjusting the census. If there is a large undercount, these
             techniques may be accurate enough for adjustment. With a small
             undercount, adjustment could easily degrade the accuracy of the
             data. The Bureau argued that errors in the census were more serious
             than errors in the proposed adjustment, using ``loss function
             analysis'' to balance the risks. This procedure turns out to depend
             on quite unreasonable assumptions. With other and more realistic
             assumptions, the balance favors the census. The story has a broader
             moral. Statistical models are often defended on grounds of
             robustness. However, internally generated measures of precision may
             be critical. If the model is at all complicated, these measures of
             precision may turn out to be driven by assumptions not data---the
             antithesis of robustness.},
  EDNOTES = {<contact>http://erx.sagepub.com/cgi/content/abstract/18/3/243 gives
             subtitle as one of the authors},
   }