Forecasting model of NBP | NECMOD

NECMOD is the NBP’s main forecasting model. It is a structural macroeconometric model designed to describe the Polish economy

NECMOD is the NBP’s main forecasting model. It is a structural macroeconometric model designed to describe the Polish economy

NECMOD is the NBP’s main forecasting model. It is a structural macroeconometric model designed to describe the Polish economy, on which the inflation and GDP projection published in the fourth chapter of Inflation Report is based. The NECMOD model was developed in 2008 as a result of many far-going refinements introduced to the ECMOD model (see a table below). The current structure of the model is presented in the following scheme.

The reestimation of the NECMOD model is carried out once a year, before the July projection round – the last one took place in May 2019.

The following table contains files with documentation of subsequent forecasting models of NBP, together with their updates: NECMOD (from 2008), ECMOD (years 2005-2008), MSMI (jointly with NSA – years 2003-2005) and NSA (years 2000-2003).

NECMOD model

YearLinkComments
2012Re-estimation of NECMOD modelRespecification of labour participation block.
2011Re-estimation of NECMOD modelChanges to prices block. Including the hysteresis.
2010Re-estimation of NECMOD modelChanges to prices block. New corporate investment equation.
2009Re-estimation of NECMOD model

Re-estimation of NECMOD model – presentation
Changes to the foreign trade block.
2008A description of NECMOD model
NECMOD model – presentation
The first version of the NECMOD model. Changes to the ECMOD model include: more complex labour market structure, incorporation of inflation expectations, breakdown of gross fixed capital formation (into private, public and residential), implementation of the housing block modelled both from demand and supply side, changes to prices block (including a new core inflation definition), the impact of global commodity prices on the domestic prices included.

ECMOD model

YearLinkComments
2007A description of ECMOD modelEndogenously determined non-accelerating wage rate of unemployment (NAWRU), changes applied to wage equation, foreign trade block and the external environment definition.
2005A description of ECMOD modelThe first version of the ECMOD model.

MSMI and NSA models

YearLinkComments
2004A description of MSMI and NSA modelsModels documentation from February 2004.

See also