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1 - 10 van 74 voor missing values
Microsoft Word - discussion144.doc
... reference sample (%) n if the accountability policies induced strategic behaviour we might observe relatively more missing values in schools in amsterdam than in schools in the other two samples after the ... within a class are missing. it seems likely that the teachers failed to send the cito-scores of their classes to the prima-project. we consider these missing values as a non-reporting ...
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disc159.pdf
... ). we use the variable saving rates only for our descriptives. permanent income has about 4000 missing values, which reduces the sample to little more than 14000 observations. we compute the saving rate ... %. net household income from the income questionnaire is then used to proxy for y where missing values are replaced by the answer to the categorial question inkhh (the total net income of ...
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disc160.pdf
... . these bracket questions reduce item non-response and result in more accurate measures of assets values. missing values are imputed by center data. the assets are deflated to real 2009 euros. 9 pension ... the whole sample. this is a smaller sample relative previous estimation. this is due to missing values for savings and expected wealth accumu- lation. the effect of a wealth change (saving relative ...
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Microsoft Word - discussion57
... per square meter is the dependent variable, all variables are in logarithms. in model 2, missing values of covariates have been substituted with country means, or sample means if there were less ... discussed earlier, two other specifications are presented, because the control variables contain a lot of missing observations. in model 2, missings are substituted with country means, or sample means if ...
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does education reduce probability being overweight pdf
... of the level of completed education. if this information is missing we add information collected in the first survey. respondents ... women men difference in years of schooling differenceinbmiin1980 bmi1980 fitted values women difference in years of schooling differenceinbmiin1980 it should ... by a k. the estimation sample is smaller because of missing values on body size estimates in table 3.6 show ...
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effect childhood conduct disorder human capital pdf
... findings by addressing three issues. first, we test the sensitivity of the results by imputing missing values on human capital outcomes which are due to the routing of the questionnaire. second, ... effect of conduct disorder (apa definition) on positive and negative human capital after imputation of missing values due to the routing of the questionnaire apa definition 3+ dropout 3+ job quits ...
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improving energy efficiency building pdf
... values for walls includes 856 observations (xi jt) for seven countries (excluding france and the netherlands) period. due to a large range of missing ... available for denmark and uk period. in addition, there are many missing values for energy r d expenditures (in particular there are no ... table 4.3 use one year and two years lead values of the u-values for walls, respectively. a lead 29 of three years ...
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memo180.pdf
... missing values 2.1 national accounts and balance of payment statistics the national accounts and balances of payments statistics of most countries are published from 1971 onwards and sometimes data was also missing ... investment, data from the wdi on gross fixed capital formation (gfcf) have been used. missing values have been imputed by assuming a fixed ratio of gfcf to gdp. backward extrapolation ...
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memo179.pdf
... a surprisingly large amount of technical details, both statistical and numerical. solving discrepancies between mirror values requires a choice between two models. first the traditional model for making macro-economic ... or tsp. in the first place, no distinction is made in gams between zeros and missing values if an array is partly filled with data. second, gams produces without a warning an ...
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memo224.pdf
... vectors refers to a common equation. if a publication yields less than 8 elasticities, missing values are included as not available (na). consequently all vectors of elasticities have equal length. ... have been restricted (their r dummy marginal income retention rate and consumer price are missing and coefficients for the replacement and unemployment rate have been estimated freely (f dummy ...
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