Notas Técnicas
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- Control de calidad de las cifras contenidas en una hoja de trabajo ExcelIt is known than Microsoft Excel spredsheet is very useful, and than its main feature is that values or data can be typed or copied from a database to introduce them in the spredsheet. Because these values are used for building economic indicators for political economic analysis and recommendations, it is important to guarantee its accuracy. Therefore, it is necessary to have a Quality Control System that would be able to detect irregular extreme amounts. In this paper several ways to control information are offered with commands included in the Microsoft Excel spredsheet as: AND, OR, NOT, Range, Name, Consolidation, Validation. Some of these features may be used more than other ones, but all of them are presented in one document for an easy and complete consult. Also there are some examples about the system tools using for an automatic spredsheet analysis.
- Implementación del Modelo RMSM-X para Costa Rica: Principales aspectos metodológicos del módulo RXAzofeifa-Villalobos, Ana Georgina; Barquero, Luvy; Blanco, Carlos; Porras, Daniel; Rodríguez, Mayra; Rojas-Sánchez, Mario AlfredoThis paper shows the interinstitutional group’s advances of the implementation process of the World Bank’s economic structural model, known as Revised Minimum Standard Model Extended (RMSM-X). The interinstitutional group is conformed by members of the staff of Banco Central de Costa Rica, Ministerio de Hacienda and Consejo Monetario Centroamericano. The document presents the main technical and conceptual aspects of the model and makes an extensive review of the basic data in order to adequate it to the guidelines of the accounting framework of the recent versions of international standards of macroeconomic statistics. The RMSM-X model is built up in electronic sheets of Excel and it is designed for simulation exercises. In addition, this model is useful in forecasting, monitoring and for the analysis of financial flows in developing economies. Specifically, the basic model contains four economic agents or sectors: Public, Private, Financial and Foreign. In addition, the model forecasts detailed trade accounts and foreign debt flows and stocks, so it can be used to produce a comprehensive outlook for any developing country. With the appropriate adaptations for Central American economies, the model will be used by the Central Banks and Ministers of Finance for macroeconomic consistency, policy making and forecasting, under the guidance of the Consejo Monetario Centroamericano and the technical assistance of the World Bank.
- Control de calidad de los datos en series económicas de tiempoThis technical note studies the command TERROR included in the integrated software TRAMO SEATS, with the aim to illustrate the potential for this application within the context of streamlining and systematization in data audit, therefore improving the quality of the information used in the Economic Divisionand the Central bank to carry out the different calculations and research that this unit develops.Costa Rican official data has been used series in order to assimilate the usefulness of the tool, nevertheless, is recommended to apply this procedure topreliminary data from which “The final statistics” are generated, this would allow for a verification of the data considered suspicious before being used for the elaboration of final products.On the other hand, this study constitutes a contribution from the Economic Research Department to the Economic Division´s Automatization of information systems and process project.
- Filtro de KalmanThe Kalman filter is a set of mathematical equations that provides an efficient computational (recursive) solution of the least-squares method. The goal is to find unbiased minimum variance lineal estimator of the state at time t with base in available information at time t-1 and update with the additional available information at time t that estimator. This filter is the principal algorithm to estimate dynamic systems specified in state-space form.