Hello
I am working on elasticities true a translog cost function. I used the example on sas to work with my data and i am blocked with the Error below. Please help me find a solution to solve it and continue the program
here is my program :
173 proc model data = WORK.ER;
174 parameters a_c gcc gcg gcf gch gce gcs gcy
175 a_g ggc ggg ggf ggh gge ggs ggy
176 a_f gfc gfg gff gfh gfe gfs gfy
177 a_h ghc ghg ghf ghh ghe ghs ghy
178 a_e gec geg gef geh gee ges gey
179 a_s gsc gsg gsf gsh gse gss gsy;
180 endogenous sc sg sf sh se ss;
181 exogenous pc pg pf ph pe ps y;
182
183 /*System of Derived Demand Equations*/
184 sc = a_c + gcc*log(pc) + gcg*log(pg) + gcf*log(pf) + gch*log(ph) + gce*log(pe)
185 + gcs*log(ps) + gcy*log(y);
186 sg = a_g + ggc*log(pc) + ggg*log(pg) + ggf*log(pf) + ggh*log(ph) + gge*log(pe)
187 + ggs*log(ps) + ggy*log(y);
188 sf = a_f + gfc*log(pc) + gfg*log(pg) + gff*log(pf) + gfh*log(ph) + gfe*log(pe)
189 + gfs*log(ps) + gfy*log(y);
190 sh = a_h + ghc*log(pc) + ghg*log(pg) + ghf*log(pf) + ghh*log(ph) + ghe*log(pe)
191 + ghs*log(ps) + ghy*log(y);
192 se = a_e + gec*log(pc) + geg*log(pg) + gef*log(pf) + geh*log(ph) + gee*log(pe)
193 + ges*log(ps) + gey*log(y);
194 ss = a_s + gsc*log(pc) + gsg*log(pg) + gsf*log(pf) + gsh*log(ph) + gse*log(pe)
195 + gss*log(ps) + gsy*log(y);
196
197
198 fit sc sg sf sh se ss / itsur converge=0 maxiter=32000;
199
200
201 test "Homogeneity"
202 gcc+gcg+gcf+gch+gce+gcs=0,
203 ggc+ggg+ggf+ggh+gge+ggs=0,
204 gfc+gfg+gff+gfh+gfe+gfs=0,
205 ghc+ghg+ghf+ghh+ghe+ghs=0,
206 gec+geg+gef+geh+gee+ges=0,
207 gsc+gsg+gsf+gsh+gse+gss=0, / lr;
208
209 test "Symmetry"
210 gcg=ggc,
211 gcf=gfc,
212 gch=ghc,
213 gce=gec,
214 gcs=ges,
215 ggf=gfg,
216 ggh=ghg,
217 gge=geg,
218 ggs=gsg,
219 gfh=ghf,
220 gfe=gef,
221 gfs=gsf,
222 ghe=geh,
223 ghs=gsh,
224 ges=gse, / lr;
225
226 test "Joint Homogeneity and Symmetry"
227 gcc+gcg+gcf+gch+gce+gcs=0,
228 ggc+ggg+ggf+ggh+gge+ggs=0,
229 gfc+gfg+gff+gfh+gfe+gfs=0,
230 ghc+ghg+ghf+ghh+ghe+ghs=0,
231 gec+geg+gef+geh+gee+ges=0,
232 gsc+gsg+gsf+gsh+gse+gss=0,
233 gcg=ggc,
234 gcf=gfc,
235 gch=ghc,
236 gce=gec,
237 gcs=ges,
238 ggf=gfg,
239 ggh=ghg,
240 gge=geg,
241 ggs=gsg,
242 gfh=ghf,
243 gfe=gef,
244 gfs=gsf,
245 ghe=geh,
246 ghs=gsh,
247 ges=gse, / lr;
248 run;
WARNING: The option CONVERGE=0 value specified is too small. The option value is reset to CONVERGE=1.49167E-154.
ERROR: A l'itération ITSUR 0 there are 7 nonmissing observations available. At least 8 are needed to compute the next iteration.
249
250
251 OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
