TY - BOOK AU - Fisher, Walter Dummer TI - Clustering and aggregation in economics U1 - 330.018 PY - 1969/// CY - Baltimore, Md. PB - Johns Hopkins Press KW - ECONOMETRIA N1 - Preface -- 1. Purpose ande scope -- 2. Prediction models -- 3. Input-aoutput analysis -- 4. Decision-proper models -- 5. A clustering method -- 6. Related matters -- 7. Conclusion ER -