Economics Letters 70 (2001) 145
www.elsevier.com / locate / econbase
Erratum
Erratum to ‘‘A note on the optimality of airline networks’’
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[Economic Letters, 69 (2000) 429–434]
*
Eric Pels , Peter Nijkamp, Piet Rietveld
Free University Amsterdam, Department of Spatial Economics, De Boelelaan 1105, 1081 HV Amsterdam, Netherlands
The publisher regrets the errors which appeared in the above article. The corrected versions are published below.
Page 430, line 13:u,1 / 2n23 should be u ,1 /(2n23)
Page 430, line 14:a.2 /u 11 should be a.2 /(u11)
Page 430, line 14:a,1 /u(n21) should be a,1 / [u(n21)]
]
Œ
Page 431, line 2: limu↓
s
us2n21d112 F/u(2n211u)d
53 / 21f should be 0]
Œ
limu↓
s
[us2n21d112 F] / [u(2n211u)]d
53 / 21f 0] ]
Œ Œ
Page 433, line 4:u 52f(122n)211 C/ 4f should be u 5
f
2f(122n)211 Cg
/ [4f ]2 2
2 ¯
Page 433, line 6: f.f51 / 4 2ns 23 nds 22 / nd s 21d should be 2
¯
f.f5[1 / 4][(2n23)(n22)] /(n21)
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Original PII of article: S0165-1765(00)00317-7
*Corresponding author. Tel.: 131-20-4446-098; fax:131-20-4446-004.
E-mail address: [email protected] (E. Pels).
