rice universityrsickles/paper/bls.pdf · mho fodvvl fdwlrq qxpehuv= g79/ f56/ f76/ o
TRANSCRIPT
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74
Figures, and TablesFigures
Average Number of Ways (round trip = 2, one way = 1)
1.4
1.45
1.5
1.55
1.6
1.65
1.7
1.75
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
Figure 5.1
Average Over One-Way Trips: Number of Airlines vs. Number of Interline Segments
0.00000
0.20000
0.40000
0.60000
0.80000
1.00000
1.20000
1.40000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
nalins ninter
Figure 5.2
Average Over Round Trips: Number of Airlines vs. Number of Interline Segments
0.00000
0.20000
0.40000
0.60000
0.80000
1.00000
1.20000
1.40000
1.60000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
nalins ninter
Figure 5.3
Average Number of Segments for One-Way and Round Trip tickets
0.00000
0.50000
1.00000
1.50000
2.00000
2.50000
3.00000
3.50000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
One-Way Two-Way
Figure 5.4
Circuity for One-Way and Round Trip tickets
1.02000
1.03000
1.04000
1.05000
1.06000
1.07000
1.08000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
One-Way Two-Way
Figure 5.5
Figure 5.6
Average Food Expenses per Passenger Enplaned: Adjusted and Unadjusted
0
1
2
3
4
5
6
7
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
Unadjusted Adjusted
Figure 5.7
Fraction of Round Trip Itineraries That Are First Class
0.00000
0.01000
0.02000
0.03000
0.04000
0.05000
0.06000
0.07000
0.08000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
Figure 5.8
Fraction of Itineraries That Are Discounted Coach Fares: Round Trip and One-Way
0.00000
0.10000
0.20000
0.30000
0.40000
0.50000
0.60000
0.70000
0.80000
0.90000
1.00000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
Round Trip One Way
Figure 5.9
Fraction of Zero Coupon Itineraries: Round Trip and One-Way
0.00000
0.02000
0.04000
0.06000
0.08000
0.10000
0.12000
0.14000
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
date (yyq)
Round Trip One Way
Figure 5.10
CPI vs. DB1A arithmetic and geometric replications (base=832)
0
20
40
60
80
100
120
140
160
180
200
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
year-quarter (yyq)
Ind
ex le
vel
DB1A Geom. DB1A Arithm. BLS-CPI
Figure 6.1
Unadjusted One Way and Round Trip Price Indices
0.90
1.10
1.30
1.50
1.70
1.90
2.10
2.30
2.50
79 81 83 85 87 89 91 93
Time
Pri
ce In
dex
P1Basic
P2Basic
Figure 6.2
Comparison of Adjusted and Basic One Way Price Indices (base=791)
0.90
1.10
1.30
1.50
1.70
1.90
2.10
2.30
2.50
79 81 83 85 87 89 91 93
Time
Pri
ce In
dex
P1Basic
P1Adjust
Figure 6.3
Comparison of Adjusted and Unadjusted Round Trip Price Indices (base=791)
0.90
1.10
1.30
1.50
1.70
1.90
2.10
2.30
2.50
79 81 83 85 87 89 91 93
P2Basic
P2Adjust
Figure 6.4
BLS CPI vs. Hedonic CPI (base=832)
0
20
40
60
80
100
120
140
160
180
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
YYQ
Ind
ex L
evel
BLS-CPI Hedonic Index
Figure 6.5
Hedonic Index vs. DB1A replication Indices (Base=832)
0
20
40
60
80
100
120
140
160
180
200
791
793
801
803
811
813
821
823
831
833
841
843
851
853
861
863
871
873
881
883
891
893
901
903
911
913
921
923
YYQ
Ind
ex
Hedonic Index DB1A Geom. DB1A Arithm.
Figure 6.6
TablesTable 6.1
A Comparison of Different IndicesBLS Air Index DB1A
ArithmeticMean
DB1AGeometric
Mean
Bench MarkHedonic Model
Hedonic Index Hedonic Indexw/ Ticket
RestrictionsData SourceFixed RouteFixed Class
Fix Wgt. AreaFix Wgt. USGeo Mean
Arith. MeanQuality Adj.
Zero Coup Adj.
SABREYesYesYesYesNoYesNoNo
DB1AYesNoNoYesNoYesNoNo
DB1AYesNoNoYesYesNoNoNo
DB1ANoNoNoNoNANANoYes
DB1ANoNoNoNoNANAYesYes
DB1ANoNoNoNoNANAYesYes
Avg. Yearly Inf 9.80% 10.19% 8.84% 4.42% 4.69% 6.27%
One WayModel
Round TripModel
One WayModel
Round TripModel
Coeff Estimate Std Error Estimate Std Error Coeff Estimate Std Error Estimate Std Error
1979-11979-21979-31979-4
1980-11980-21980-31980-4
1981-11981-21981-31981-4
1982-11982-21982-31982-4
1983-11983-21983-31983-4
1984-11984-21984-31984-4
1985-11985-21985-31985-4
1986-11986-21986-31986-4
.000000 .000000 .131647 .000717 .183385 .000703 .271259 .000688
.341144 .000699 .368445 .000677 .347191 .000677 .323089 .000712
.406969 .000703 .391012 .000679 .366208 .000673 .341781 .000683
.341514 .000682 .361650 .000667 .389378 .000659 .376822 .000682
.375201 .000679 .438298 .000657 .450713 .000649 .448037 .000655
.480502 .000659 .491375 .000645 .473786 .000640 .498520 .000646
.500758 .000651 .508989 .000638 .505568 .000636 .423235 .000635
.429316 .000637 .386636 .000641 .454321 .000628 .493267 .000653
.000000 .000000
.084386 .000627
.120222 .000634
.238698 .000630
.326022 .000638
.330174 .000636
.303250 .000648
.318564 .000639
.473544 .000666
.421443 .000647
.423067 .000669
.418745 .000644
.387478 .000651
.409308 .000636
.454254 .000640
.409182 .000632
.345801 .000629
.440545 .000624
.509589 .000643
.530297 .000628
.557338 .000630
.530916 .000608
.510774 .000618
.501107 .000608
.487270 .000608
.413476 .000595
.438910 .000604
.425652 .000601
.365051 .000593
.326974 .000594
.332452 .000605
.386131 .000597
1987-11987-21987-31987-4
1988-11988-21988-31988-4
1989-11989-21989-31989-4
1990-11990-21990-31990-4
1991-11991-21991-31991-4
1992-11992-21992-31992-4
R2FNNi
.531658 .000669
.557406 .000660
.642275 .000653
.702656 .000667
.750258 .001217
.684097 .000659
.776370 .001141
.686545 .000669
.875029 .001078
.666478 .000658
.566361 .000648
.596645 .000661
.647923 .000664
.676124 .000655
.651849 .000654
.700685 .000672
.619265 .000674
.611315 .000662
.660826 .000655
.670174 .000669
.687399 .000668
.646160 .000658
.641092 .000652
.671827 .000661
.68112 113,511. 64,024,141. 79,248.
.336607 .000587 .327748 .000576 .397713 .000582 .455133 .000584
.655742 .001002 .502266 .000571 .686379 .001008 .516745 .000574
.907902 .000929 .567267 .000573 .494588 .000570 .510470 .000562
.600511 .000567 .598749 .000561 .540321 .000563 .581347 .000569
.654331 .000577 .570308 .000563 .585231 .000570 .636296 .000570
.757830 .000582 .543558 .000565 .427392 .000559 .634672 .000572
.44185 120,919. 95,279,537. 79,139.
Table 6.2: Estimates for Bench Mark Model
One WayModel
Round TripModel
One WayModel
Round TripModel
Coeff Estimate Std Error Estimate Std Error Coeff Estimate Std Error Estimate Std Error
ln Foodln Depln Inter
First Cl2 Segs3 Segs4 Segs
1979-11979-21979-31979-4
1980-11980-21980-31980-4
1981-11981-21981-31981-4
1982-11982-21982-31982-4
1983-11983-21983-31983-4
1984-11984-21984-31984-4
1985-11985-21985-31985-4
.057350 .000062-.077457 .000210 .319661 .000547
.009840 .000249 .004774 .000221
.000000 .000000 .119343 .000708 .177663 .000695 .267474 .000680
.333729 .000691 .355464 .000670 .332617 .000670 .288215 .000705
.375977 .000695 .365019 .000672 .330924 .000667 .305416 .000677
.309437 .000675 .336192 .000661 .361963 .000653 .351123 .000675
.348629 .000673 .411501 .000651 .426179 .000643 .417013 .000649
.453261 .000654 .466200 .000640 .448623 .000635 .480478 .000640
.482905 .000645 .494214 .000633 .523423 .000631 .442321 .000629
.070076 .000122-.021254 .000186 .314721 .000194
.622013 .000346
.000617 .000217-.109097 .000208
.000000 .000000 .072007 .000607 .111818 .000614 .230940 .000610
.317276 .000619 .321492 .000617 .298420 .000629 .311909 .000621
.457073 .000647 .423952 .000628 .420699 .000651 .413868 .000627
.382742 .000633 .422916 .000618 .462897 .000623 .426553 .000615
.363538 .000612 .462283 .000607 .531412 .000625 .546810 .000611
.569750 .000613 .549884 .000593 .531523 .000602 .525912 .000592
.511242 .000592 .446156 .000579 .471529 .000589 .460142 .000586
1986-11986-21986-31986-4
1987-11987-21987-31987-4
1988-11988-21988-31988-4
1989-11989-21989-31989-4
1990-11990-21990-31990-4
1991-11991-21991-31991-4
1992-11992-21992-31992-4
R2FNNi
.445976 .000632 .413581 .000636 .477949 .000624 .519626 .000648
.553903 .000664 .582817 .000656 .662000 .000649 .724473 .000662
.740659 .001205 .721165 .000654 .768125 .001130 .729768 .000665
.862361 .001068 .701687 .000653 .606047 .000644 .634399 .000656
.678261 .000662 .715318 .000655 .685130 .000654 .738359 .000672
.651171 .000673 .643303 .000663 .696390 .000657 .714363 .000670
.732743 .000670 .692213 .000660 .695754 .000656 .722949 .000664
.68254 133,347 64,024,141. 79,248.
.401204 .000579
.366409 .000580
.373821 .000591
.430882 .000582
.383329 .000573
.383257 .000564
.447529 .000571
.503507 .000573
.681558 .000975 .549343 .000561 .707544 .000982 .562544 .000566
.908509 .000906 .604131 .000565 .536835 .000562 .545739 .000555
.629540 .000562 .631447 .000558 .570096 .000562 .611860 .000566
.682229 .000574 .603464 .000562 .615449 .000571 .666161 .000569
.778981 .000582 .573328 .000565 .462976 .000559 .667230 .000571
.48334 222,150. 95,279,542. 79,139.
Table 6.3: Estimates for Model with Quality Variables
One WayModel
Round TripModel
One WayModel
Round TripModel
Coeff Estimate Std Error Estimate Std Error Coeff Estimate Std Error Estimate Std Error
ln Foodln Depln Inter
First ClFCNewF RestrtY Restrt2 Segs3 Segs4 Segs
1979-11979-21979-31979-4
1980-11980-21980-31980-4
1981-11981-21981-31981-4
1982-11982-21982-31982-4
1983-11983-21983-31983-4
1984-11984-21984-31984-4
1985-11985-21985-31985-4
.035667 .000064-.069821 .000205 .311014 .000536
.450880 .000510-.746571 .000601-.163372 .000917-.143883 .000135 .004774 .000221
.000000 .000000 .130343 .000693 .194426 .000680 .276723 .000665
.344044 .000676 .383116 .000656 .360788 .000656 .321839 .000690
.406595 .000681 .403843 .000659 .377461 .000654 .351862 .000664
.359685 .000662 .390038 .000648 .416864 .000640 .406352 .000662
.404044 .000660 .472558 .000638 .488926 .000631 .483680 .000637
.516296 .000641 .568221 .000630 .557910 .000625 .588324 .000631
.585641 .000635 .597059 .000623 .620830 .000622 .551832 .000622
.073075 .000119-.025848 .000181 .282482 .000190
.511057 .000467 .079969 .000920-.336050 .000863-.294731 .000134
-.002569 .000211-.108666 .000202
.000000 .000000 .085149 .000592 .127450 .000598 .240001 .000595
.310714 .0006003 .324051 .000601 .311709 .000613 .351941 .000605
.493380 .000631 .474508 .000612 .475235 .000635 .471488 .000611
.441142 .000618 .492552 .000603 .540316 .000608 .523693 .000601
.463098 .000598 .563095 .000593 .623636 .000611 .657317 .000598
.667603 .000599 .677280 .000581 .679142 .000591 .680385 .000581
.658956 .000581 .596044 .000568 .621574 .000578 .611416 .000576
1986-11986-21986-31986-4
1987-11987-21987-31987-4
1988-11988-21988-31988-4
1989-11989-21989-31989-4
1990-11990-21990-31990-4
1991-11991-21991-31991-4
1992-11992-21992-31992-4
R2FNNi
.550154 .000623 .523665 .000628 .578357 .000616 .621167 .000639
.656667 .000654 .685043 .000647 .769153 .000640 .821586 .000652
.763661 .001179 .810117 .000644 .798768 .001106 .809356 .000654
.876850 .001046 .783943 .000653 .684838 .000643 .711496 .000645
.862975 .000657 .901681 .000651 .877281 .000651 .930724 .000668
.850231 .000670 .844376 .000659 .901937 .000654 .922502 .000668
.943008 .000667 .906864 .000659 .910479 .000654 .941617 .000663
.70285 177,380 64,024,141. 79,248.
.562686 .000569
.536447 .000571
.540619 .000581
.602813 .000573
.545567 .000564
.550922 .000555
.619987 .000562
.675525 .000564
.671467 .000950 .722428 .000552 .697766 .000957 .736161 .000557
.878056 .000883 .766493 .000555 .709309 .000553 .720662 .000547
.800734 .000554 .807870 .000551 .749520 .000554 .788713 .000559
.863407 .000566 .798129 .000555 .813627 .000564 .858237 .000563
.962937 .000575 .775220 .000560 .667321 .000554 .869538 .000565
.49699 301,484. 95,279,542. 79,139.
Table 6.4: Estimates for Model With Ticket Restrictions