Resultados científicos y tecnológicos de los centros de I+D

--Identifying the dataset as a panel data--- iis (n)

tis(year

---Summary statistics: All, by efficiencies, inefficiencies and differentials by year--- sum

sum te oe se oe ti ai si oi ted aed sed oed if year ==98 sum te oe se oe ti ai si oi ted aed sed oed if year ==99 sum te oe se oe ti ai si oi ted aed sed oed if year ==100 sum te oe se oe ti ai si oi ted aed sed oed if year ==101 sum te oe se oe ti ai si oi ted aed sed oed if year ==102 sum te oe se oe ti ai si oi ted aed sed oed if year ==103 sum te oe se oe ti ai si oi ted aed sed oed if year ==104 sum te oe se oe ti ai si oi ted aed sed oed if year ==105 sum te oe se oe ti ai si oi ted aed sed oed if year ==106 sum te oe se oe ti ai si oi ted aed sed oed if year ==107

---Summary statistics: Farms by Output Specialization in terms of Net Gross Farm Income---

sum if plivdi>.8 sum if pcropi>.8

sum if plivdi<.8 & pcropi<.8

sum te ae se oe ted aed sed oed if typecrop==1 sum te ae se oe ted aed sed oed if typelivest==1 sum te ae se oe ted aed sed oed if typemixed==1

---Summary statistics: Farms by Size in terms of Net Gross Farm Income---

sum if rgfi<100000

sum if rgfi>100000 & rgfi<250000 sum if rgfi>250000 & rgfi<500000 sum if rgfi>500000

---Summary statistics of Fully Efficient Farms in Both Models, by year---

sum if te==1 & year==98 sum if te==1 & year==99 sum if te==1 & year==100 sum if te==1 & year==101 sum if te==1 & year==102 sum if te==1 & year==103 sum if te==1 & year==104 sum if te==1 & year==105 sum if te==1 & year==106 sum if te==1 & year==107

sum if ted==1 & year==98 sum if ted==1 & year==99 sum if ted==1 & year==100 sum if ted==1 & year==101 sum if ted==1 & year==102 sum if ted==1 & year==103 sum if ted==1 & year==104 sum if ted==1 & year==105 sum if ted==1 & year==106 sum if ted==1 & year==107

sum if ae==1 & year==98 sum if ae==1 & year==99 sum if ae==1 & year==100 sum if ae==1 & year==101 sum if ae==1 & year==102 sum if ae==1 & year==103 sum if ae==1 & year==104 sum if ae==1 & year==105 sum if ae==1 & year==106 sum if ae==1 & year==107

sum if aed==1 & year==98 sum if aed==1 & year==99

sum if aed==1 & year==100 sum if aed==1 & year==101 sum if aed==1 & year==102 sum if aed==1 & year==103 sum if aed==1 & year==104 sum if aed==1 & year==105 sum if aed==1 & year==106 sum if aed==1 & year==107

sum if se==1 & year==98 sum if se==1 & year==99 sum if se==1 & year==100 sum if se==1 & year==101 sum if se==1 & year==102 sum if se==1 & year==103 sum if se==1 & year==104 sum if se==1 & year==105 sum if se==1 & year==106 sum if se==1 & year==107

sum if sed==1 & year==98 sum if sed==1 & year==99 sum if sed==1 & year==100 sum if sed==1 & year==101 sum if sed==1 & year==102 sum if sed==1 & year==103 sum if sed==1 & year==104 sum if sed==1 & year==105 sum if sed==1 & year==106 sum if sed==1 & year==107

sum if oe==1 & year==98 sum if oe==1 & year==99 sum if oe==1 & year==100 sum if oe==1 & year==101 sum if oe==1 & year==102 sum if oe==1 & year==103

sum if oe==1 & year==104 sum if oe==1 & year==105 sum if oe==1 & year==106 sum if oe==1 & year==107

sum if oed==1 & year==98 sum if oed==1 & year==99 sum if oed==1 & year==100 sum if oed==1 & year==101 sum if oed==1 & year==102 sum if oed==1 & year==103 sum if oed==1 & year==104 sum if oed==1 & year==105 sum if oed==1 & year==106 sum if oed==1 & year==107

sum if te==ted sum if ae==aed sum if se==sed sum if oe==oed sum if te~=ted sum if ae~=aed sum if se~=sed sum if oe~=oed sum if bdebt==0

sum if bdebt~=0 & bdebt<50000 sum if bdebt>50000 & bdebt<100000 sum if bdebt>100000 & bdebt<250000 sum if bdebt>250000 & bdebt<500000 sum if bdebt>500000

--First essay Panel data Tobits and Tobit test statistics---

xttobit ti powna offi v468 plivdi pcwki m55age tdta rnfiac ppasta year1 year2 year3 year4 year5 year6 year7 year8 year9, ll(0) tobit

xttobit ai powna offi v468 plivdi pcwki m55age tdta rnfiac ppasta year1 year2 year3 year4 year5 year6 year7 year8 year9, ll(0) tobit

xttobit si powna offi v468 plivdi pcwki m55age tdta rnfiac ppasta year1 year2 year3 year4 year5 year6 year7 year8 year9, ll(0) tobit

xttobit oi powna offi v468 plivdi pcwki m55age tdta rnfiac ppasta year1 year2 year3 year4 year5 year6 year7 year8 year9, ll(0) tobit

xttobit ti rnfi ppasta offi tdta m55age v468 pcropi year1 year2 year3 year4 year5 year6 year7 year8 year9 , ll(0) tobit

xttobit ai rnfi ppasta offi tdta m55age v468 pcropi year1 year2 year3 year4 year5 year6 year7 year8 year9 , ll(0) tobit

xttobit si rnfi ppasta offi tdta m55age v468 pcropi year1 year2 year3 year4 year5 year6 year7 year8 year9, ll(0) tobit

xttobit oi rnfi ppasta offi tdta m55age v468 pcropi year1 year2 year3 year4 year5 year6 year7 year8 year9, ll(0) tobit

year7 year8 year9

--Second essay Panel data Tobits and Tobit test statistics--

xttobit tincons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit ticons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit aincons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit aicons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit sincons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit sicons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit oincons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit xttobit oicons livdincp cropincp cwincp tdta cdca rnfiac offipg roa bassets year, ll(0) tobit

. ttesti 4560 .93 .12 4560 .86 .17 ttesti 4560 .83 .12 4560 .75 .15 ttesti 4560 .91 .13 4560 .84 .16 ttesti 4560 .69 .18 4560 .57 .20 ….. .estat hettest, rhs

Appendix C -

Marginal Effects and Elasticities Corresponding to

the Inefficiency Basic DEA Models (Section 5.3)

C.1 Stata Description of Marginal Effects and Elasticity Calculations