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buletin statistic de industrie industry statistical bulletin nr. 5/2012

buletin statistic de industrie industry statistical bulletin nr. 5/2012

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eprezentativitate <strong>de</strong> cca 90% la nivel <strong>de</strong><br />

total <strong>industrie</strong> şi minim 80% la nivel <strong>de</strong><br />

diviziune CAEN Rev.2, reprezentativitate<br />

calculată pe baza cifrei <strong>de</strong> afaceri.<br />

Pentru o mai bună reprezentare a<br />

<strong>industrie</strong>i alimentare, datorită specificului<br />

acesteia, în eşantionul <strong>de</strong> întreprin<strong>de</strong>ri<br />

industriale sunt incluse şi societăţile<br />

comerciale cu activitate principală <strong>de</strong><br />

agricultură dar care au subunităţi<br />

specializate în fabricarea produselor<br />

agroalimentare.<br />

Construirea sistemului <strong>de</strong><br />

pon<strong>de</strong>rare şi algoritmul <strong>de</strong> calcul<br />

Agregarea indicilor primari ai<br />

producţiei industriale se realizează<br />

printr-un sistem <strong>de</strong> pon<strong>de</strong>rări succesive,<br />

utilizându-se pentru agregarea la nivel <strong>de</strong><br />

subclasă elementară CPSA - nivel <strong>de</strong><br />

agregare superior al PRODROM-ului<br />

preţul mediu unitar din anul <strong>de</strong> bază<br />

(2005), iar pentru nivelurile <strong>de</strong> agregare<br />

superioare (clasă, grupă, diviziune,<br />

secţiune CAEN Rev. 2 sau mare grupă<br />

industrială) folosindu-se ca element <strong>de</strong><br />

pon<strong>de</strong>rare valoarea adăugată brută la<br />

costul factorilor (VABCF) din anul <strong>de</strong><br />

bază (2005).<br />

Primul nivel <strong>de</strong> agregare este<br />

nivelul clasei CAEN Rev. 2, următoarele<br />

niveluri <strong>de</strong> agregare fiind <strong>de</strong>terminate ca<br />

o medie aritmetică pon<strong>de</strong>rată a indicilor<br />

claselor, grupelor, diviziunilor, secţiunilor<br />

CAEN Rev. 2, marilor grupe industriale,<br />

cu VABCF corespunzătoare din anul <strong>de</strong><br />

bază (2005).<br />

Indicii pentru marile grupe<br />

industriale se obţin prin agregarea<br />

indicilor la nivelul grupelor CAEN Rev. 2<br />

componente, pon<strong>de</strong>rate cu VABCF<br />

corespunzător.<br />

Indicii producţiei industriale pe<br />

total <strong>industrie</strong> se obţin prin agregarea<br />

indicilor calculaţi la nivel <strong>de</strong> diviziune<br />

CAEN Rev. 2.<br />

Pe lângă indicii bruţi ai producţiei<br />

industriale, se calculează lunar şi indici<br />

ajustaţi cu numărul <strong>de</strong> zile lucrătoare prin<br />

metoda regresivă, metodă recomandată<br />

<strong>de</strong> regulamentele europene referitoare la<br />

indicatorii pe termen scurt (Regulamentul<br />

Consiliului 1165/1998).<br />

Pentru ajustarea seriilor (nivel,<br />

diviziune, secţiune, total <strong>industrie</strong> - CAEN<br />

Rev. 2, mare grupă industrială) s-a folosit<br />

pachetul <strong>de</strong> programe DEMETRA<br />

(metoda TRAMO/SEATS), care<br />

realizează estimarea efectului numărului<br />

<strong>de</strong> zile lucrătoare diferit <strong>de</strong> la o lună la<br />

<strong>industry</strong> and minimum 80% at level of<br />

CANE Rev. 2 division, this being<br />

calculated based on turnover.<br />

For a better representation of food<br />

<strong>industry</strong>, due to its specific, the sample of<br />

industrial enterprises also inclu<strong>de</strong>s<br />

commercial companies having agriculture<br />

as their main activity, but which have<br />

subunits specialised in the fabrication of<br />

agro-food products.<br />

Building up the weighting<br />

system and the calculation algorithm<br />

Primary indices of industrial<br />

production are aggregated by a system of<br />

successive weightings, using for the<br />

aggregation at level of CPA elementary<br />

subclass – PRODROM level of upper<br />

aggregation the unit average price of<br />

basic year (2005), while for upper<br />

aggregation levels (CANE Rev. 2 class,<br />

group, division, section or broad industrial<br />

group), being used as weightting element<br />

the gross value ad<strong>de</strong>d at the cost of<br />

factors (GVACF) of the basic year (2005).<br />

The first aggregation level is the<br />

level of CANE Rev. 2 class, the next<br />

aggregation levels being <strong>de</strong>termined as a<br />

weighted arithmetic mean of the CANE<br />

Rev. 2 classes, groups, divisions,<br />

sections indices, the broad industrial<br />

groups, with the corresponding GVACF of<br />

the basic year (2005).<br />

The indices for the broad industrial<br />

groups are obtained by the indices<br />

aggregation at level of the CANE Rev. 2<br />

component groups, weighted with the<br />

corresponding GVACF.<br />

The industrial production indices<br />

per total <strong>industry</strong> are obtained by the<br />

aggregation of indices calculated at level<br />

of the CANE Rev. 2 division.<br />

Besi<strong>de</strong>s gross indices of industrial<br />

production, adjusted indices wiith working<br />

days number are also monthly calculated<br />

by means of regressive method, which<br />

is recommen<strong>de</strong>d by European regulations<br />

regarding the short-term indicators<br />

(Council Regulation no. 1165/1998).<br />

In or<strong>de</strong>r to adjust the series (level,<br />

division, section, total <strong>industry</strong> – CANE<br />

Rev. 2, broad industrial group)<br />

DEMETRA programs package<br />

(TRAMO/SEATS method) was used,<br />

estimating the effect of working days<br />

number different from one mounth to<br />

102

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