Research for Information Theory

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AGGREGATION OF CONDITIONAL ABSORBING MARKOV CHAINS
June 1, 1982
This paper derives the method for aggregating conditional absorbing Markov chains into a single chain that is representative of the total process and has the same state space as the conditional chains.
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An Empirical Study of Production Inefficiency in the Presence of Errors-in-the-Variables
April 1, 1982
This paper illustrates a method for estimating a frontier production relation when output is poorly measured -- leading to errors-in-the-variables. The technique is meant to avoid not only spurious findings of inefficiency but also an overestimate of scale economies.
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TESTING FOR STRUCTURAL CHANGE BY D-METHODS IN SWITCHING SIMULTANEOUS EQUATIONS MODELS
March 1, 1982
This paper presents an extension of the Goldfeld-Quant D-method to switching simultaneous equation systems with endogeneous switching.
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ASYMPTOTIC COVARIANCE MATRICES OF TWO-STAGE PROBIT AND TWO-STAGE TOBIT METHODS FOR SIMULTANEOUS EQUATIONS MODELS WITH SELECTIVITY
March 1, 1982
This paper derives the asymptotic covariance matrices for the two-stage estimation procedures for switching simultaneous systems when the criterion function is of the probit type or of the tobit type.
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A METHOD FOR ANALYZING MULTIPLE SPELL DURATION DATA
March 1, 1982
This paper derives a probability model which analyzes multiple spell data by taking into account both the probability of changing states and the length of time an individual remains in each state.
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A RESULT IN THE THEORY OF SPIRAL SEARCH
March 1, 1982
This paper presents a result in the theory of spiral search which gives the probability of detection as a function of time for a class of prior distributions of search-object.
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PREDICTION WITH POOLED CROSS-SECTION AND TIME-SERIES DATA: TWO CASE STUDIES
March 1, 1982
This paper proposes a hybrid estimating technique for analyzing pooled cross-section and time series data.
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RETURNS TO COLLEGE EDUCATION: AN INVESTIGATION OF SELF-SELECTION BIAS BASED ON THE PROJECT TALENT DATA
March 1, 1982
This paper uses a mathematical model which incorporates self-selectivity to investigate the returns to college education based on Project TALENT data.
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EARNINGS LOSSES OF WORKERS DISPLACED BY PLANT CLOSINGS
January 1, 1982
This research contribution estimates the earnings losses of workers who lose their jobs in a plant closing. A unique data set was used: Social Security earnings records of over 9,000 workers employed in plants that actually closed. Separate estimates are made for workers by age and sex and the effects on losses of economic and demographic variables are also estimated. Alternative methodologies are discussed and used to estimate losses of workers who never work after the plant closing.
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MILITARY COMPENSATION AND RETENTION, AN ANALYSIS OF ALTERNATIVE MODELS AND A SIMULATION OF A NEW RETENTION MODEL
October 1, 1981
Four major models for predicting the effects of changes in military pay on retention are described and compared. The most sophisticated model called the Stochastic Cost of Leaving or SCOL model, is simulated to demonstrate the effects of several changes in military compensation on retention.
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