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Towards an Entrepreneurship Synthetic Indicator for Andalusia. Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions. Schedule.
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Towards an Entrepreneurship Synthetic Indicator for Andalusia
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
An Entrepreneurship Indicator System (as SICIEA) has a lot of “partial” indicators which approaches similar dimensions for a frequency. For this reason is necessary to obtain a composite or synthetic index In addition this kind of index are very useful for monitoring and forecasting In this context, we are working in the development of a entrepreneurship synthetic index from SICIEA data Justification
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Selection of Partial Indicators Statistical treatment Filtering Aggregation Synthetic Index How?
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Availability Data quality Significance Time series length Frequency Smoothed Operational Partial indicators selection criteria
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Non-calendar effects, outliers,... Non-seasoned data Irregular components adjustment Previous treatment
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Weighted sum NBER methodology Multivariate Analysis State-Space Alternative Methods of Aggregation
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Suppose n partial indicators for a variable composed by two components: A common factor An idiosyncratic specific factor The common factor might be associated with co-movements with the main macroeconomic indicators Extracting this common factor we can estimate a synthetic index Stock-Watson approach
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Spanish labour series: Private wage earners Public wage earners Employers Own account workers Frequency: Quaterly Source: Instituto Nacional de Estadística (INE) From 1987:2 to 2004:4 Exercise with Spanish Data
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
The growth rate of the i-th macroeconomic variable, Δyi,t ,consists of two stochastic components: the common unobserved scalar “index” ΔCt and a idiosyncratic shock, ui,t . Both, the unobserved index and the idiosyncratic shocks are modeled as having autoregressive stochastic process, AR(1). i denote the logarithm of a macroeconomic time-series labour variable, private and public wage earners, employers with and without workers. The Model (I)
The model is formulated as follows: The Model (II)
To estimate the model, we transform it into a state space form likelihood function. The state space form has both the state equation so that the Kalman filter can be used to evaluate it and the measurement equation. The measurement equation relates the observed variables, Δyi,t , to the unobserved state vector which consists of ΔCt, ui,t and their lags. The state equation describes the evolution of the state vector. The Model (III)
The Model (IV) • Measurement equation:
State equation: The Model (V)
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
Justification How? Partial indicators selection Statistical treatment Aggregation Methodology Data Correlations The model Results Conclusions Schedule
This work constructed a composite index using different labour series in Spain and demonstrated their usefulness in leading the business cycle (GDP growth) However: very preliminary version Conclusions