During 2011 General Population and Housing Census methodological innovations towards the planning of a register-based census were introduced. Such innovations allowed to reach a satisfactory cost-benefit balance but increased the survey complexity and the risk of errors.Istat focus on web...

The paper deals with the problem of estimating structural business statistics by exploiting already existing administrative information integrated with survey data. In particular, the aim of the study is to verify the possibility of estimating key structural variables which are not directly...

The standard approaches for dealing with provisional estimates essentially focus on the study and the definition of efficient estimator, exploiting the auxiliary information almost exclusively in the estimation phase. In this paper, we propose an extended appliance of the auxiliary information,...

A major National Accounts general revision was completed by 2005 with a complete application of SEC95 and implementation of NACE rev.1.1 classification of economic activities. In particular, the last revision has needed more detailed estimates – NACE rev.2 four digits, five size classes and...

This paper proposes a local stationarity approach in EBLUP estimation with the aim to improve the reliability of relative poverty estimates in small areas. The results of the experimentations, performed in the framework of the European Statistics on Income and Living Conditions survey (EU-SILC),...

Forward Search (FS) is an iterative method to detect the presence of groups of outliers in the case of regression or multivariate data. In the present paper, FS is applied to Istat data on marriages celebrated in 2011 and to the characteristics of partners. The aim is to identify Provinces and...

The Italian National Institute of Statistics carried out the first survey on homeless population. The survey aims at estimating the unknown size and some demographic and social characteristics of this population. The methodological strategy used to investigate homeless population could not...

When the imputed values are treated as if they were observed the precision of the estimates is generally overstated. In the paper three variance methods under imputatation are taken into account. Two of them are the well known bootstrap and Multiple Imputation. The third is a new method based on...

The list of fixed line telephone numbers, used as sampling frame for CATI surveys on households, suffers of an increasing undercoverage rate. Some methodological studies conducted on ISTAT CATI household surveys have pointed out the risk of biased estimates for particular phenomena of interest...

File concatenation is an approach that can be used to integrate two (or more) sources of data which refer to the same target population. It consists in considering the concatenation of the two files as a unique data set. Although this approach seems to be natural in an integration procedure, it...