Extensions of Model Analysis of the Quantity Adjustment Process in Several Directions

The study of within-person change lies at the core of developmental research. Theory and empirical data suggest that many of these developmental processes are not linear. We describe a broad class of multilevel models that allows for nonlinear change — nonlinear mixed models. To demonstrate the utility of these models, we present a nonlinear mixed model analysis of adjustment to conjugal loss. Coming from a perspective of the individual as a regulatory system, our model predicts a faster rate of adjustment immediately following the loss and diminished adjustment as time since the loss increases, approaching an equilibrium level of well-being. This model allows us to estimate various aspects of the adjustment trajectory and individual differences in these trajectories, including multiple ways that pre- and post-loss factors can explain variability in the adjustment process. The model provides new insights into an important phenomenon that cannot be gleaned from linear models and other methods of trajectory analysis. We discuss the strengths and limitations of this type of analysis relative to other methods.

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A Globally and Universally Stable Quantity Adjustment Process

Theory and Decision Library - Static and Dynamic Aspects of General Disequilibrium Theory ◽

10.1007/978-1-4615-6251-1_11 ◽

1996 ◽

pp. 389-435

Author(s):

P. Jean-Jacques Herings

Keyword(s):

Adjustment Process ◽

Quantity Adjustment

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A dynamic quantity adjustment process in a small open economy, and welfare effects of tariff changes

Journal of International Economics ◽

10.1016/0022-1996(81)90032-5 ◽

1981 ◽

Vol 11 (4) ◽

pp. 513-529 ◽

Cited By ~ 6

Author(s):

Takashi Fukushima

Keyword(s):

Open Economy ◽

Small Open Economy ◽

Welfare Effects ◽

Adjustment Process ◽

Dynamic Quantity ◽

Quantity Adjustment

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Catalogue reduction techniques

International Astronomical Union Colloquium ◽

10.1017/s0252921100074340 ◽

1978 ◽

Vol 48 ◽

pp. 389-390 ◽

Cited By ~ 1

Author(s):

Chr. de Vegt

Keyword(s):

Adjustment Process ◽

Proper Motions ◽

Measuring Process ◽

Aerial Photogrammetry ◽

Reduction Techniques ◽

Observational Technique ◽

The Common ◽

Astrometric Data

AbstractReduction techniques as applied to astrometric data material tend to split up traditionally into at least two different classes according to the observational technique used, namely transit circle observations and photographic observations. Although it is not realized fully in practice at present, the application of a blockadjustment technique for all kind of catalogue reductions is suggested. The term blockadjustment shall denote in this context the common adjustment of the principal unknowns which are the positions, proper motions and certain reduction parameters modelling the systematic properties of the observational process. Especially for old epoch catalogue data we frequently meet the situation that no independent detailed information on the telescope properties and other instrumental parameters, describing for example the measuring process, is available from special calibration observations or measurements; therefore the adjustment process should be highly self-calibrating, that means: all necessary information has to be extracted from the catalogue data themselves. Successful applications of this concept have been made already in the field of aerial photogrammetry.

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