Known typos in first printing of
Introduction to Industrial Organization (2nd Ed)
In spite of the several pairs of eyes that checked the draft of Introduction to Industrial Organization (2nd Edition), I am sorry to report that a number of typos and errors have survived into the first printing. Below is a list of the ones I am aware of.
I thank Mary Beth Deily (Lehigh University) and others who have pointed these out to me. Please let me know if you find more.
| Page | Location | Description |
|---|---|---|
| 25 | First equation | For consistency sake, income elasticity should be denoted η rather than εy |
| 30 | Line 3 of first paragraph in formal section | It should be "utility from not buying an apple", not "utility from buying an apple" |
| 39 | Equation 3.1 | For consistency sake, the TFP coefficient should be ωi, not ξi |
| 45 | Line 5-6 of second paragraph | should be "second unit is 8.5", not "second unit is 7.5" |
| 61 | Question 3.5 | Substitute "daily" and "day" for "weekly" and "week" |
| 64 | Line 6 | Substitute "β-e" for "β>0" |
| 89 | Last line | Should read "who does not mind purchasing abroad", not "who does not mind to purchase abroad" |
| 90 | Problem 4.12 | Should read "hint: consider a short-run equilibrium", not "hint: consider a monopolist with constant average and marginal cost c" |
| 96 | Second sentence in first complete paragraph | Should read "or an output subsidy", not "or a output subsidy" |
| 97 | Line -4 in Box 5.1 | Should read "than", not "then" |
| 100 | Line -3 | Should read "area of the", not "are of the" |
| 101 | end of first paragraph | Should read "...0 and less than 1 (and c1 > 0)" |
| 110 | Box 5.3, 3rd paragraph, 2nd sentence | Should read "PC makers", not "PC markers" |
| 121 | line -3 | Should read "the area π", not "(pM-c)qM" |
| 121 | line -1 | Should read "a greater margin per unit sold", not "a greater margin, p - c, per unit sold" |
| 125 | First paragraph in Section 6.1 | Delete sentence "pounds 117, euro 125 and Y18,000, respectively)" |
| 137 | Third complete paragraph | Should read "fixed fee", not "fixe fee" |
| 141 | line 3 of last complete paragraph | Should read "independent and identically distributed", not "independent" |
| 149 | Question 6.3 | Should read "same practice", not "same is practice" |
| 151 | line 8 in Question 6.10 | Should read "$50 to students", not "$50 to consumers" |
| 153 | line 6 in Question 6.16 | Should read "i=h,l", not "i=1,2" |
| 154 | line 3 in Question 6.17 | Should read "that a risk-neutral Bidder 1", not "that Bidder 1" |
| 166 | line 2 in third paragraph of "Continuous Variables" section | Should read "Si", not "S" |
| 168 | line 4 in first complete paragraph | Should read "decision onde (or endnode)", not "decision node" |
| 171 | Figure 7.9 | Last endnode should be "-10,10", not "-10,-10" |
| 172 | line -4 | Should read "Players 1 and 2: start at (T,L); if in the past", not "Players 1 and 2: if in the past" |
| 174 | Third line from bottom | After "estimates that the average valuation", add "(in thousands of dollars)" |
| 174 | last line | Should read "these averages", not "these average" |
| 175 | First line | Should read $30,000, not $30. |
| 175 | Second line in third complete paragraph | Should read "4.5 or 30 (values in thousands of dollars)", not "$4.50 or $30" |
| 177 | Figure 7.12 | Values [0 ,0] and [26.1, -25.3] should be swapped |
| 179 | Problem 7.3(b) | Where it reads "800k" it should simply be "800." Or: think of all quantity values in 000 units. |
| 180 | Part (d) of Question 7.7 | Should read "comment on this statement", not "comment this statement" |
| 181 | Question 7.12 | Should read "if both choose H, then each gets 4; if both choose L, then each gets 5", not ""if both choose H, then each gets 5; if both choose L, then each gets 4"" |
| 204 | Last line in advanced section | The letter X should be omitted from the equation 2/3 120 = $80 (or replaced by the LaTeX character \times) |
| 215 | Question 8.16 | First equation should have "(p-MC)/p", not "(p-MC)/MC" |
| 215 | Question 8.19, second and third lines | Should read "Each firm's cost function is given by C = 10 + q(q+2)", not "Each firm's cost function is given by C = 10 + q(q+1)" |
| 216 | Footnote 7. | Should read "Scheinkman", not "Sheinkman" |
| 230 | Seventh line from bottom | Should read "firms or by the government", not "firms of by the government" |
| 242 | Question 9.1, third line | Should read "industries", not "countries" |
| 242 | Question 9.1, fifth line | Should read "finally, 1-h", not "finally, h" |
| 243 | Question 9.9, first line | Should read "law allowing", not "low allowing" |
| 245 | Last line in Exercise 9.17 | Should read "increasing in n", not "decreasing in n" |
| 256 | Footnote f | Should read "structure", not "strcuture" |
| 257 | Footnote h | Should not be indented |
| 258 | Box 10.1, fifth paragraph, first line | Should read "as incomes increase", not "as incomes increases" |
| 262 | Empirical evidence section, 2nd and 3rd lines | Should read "the number of firms", not "industry concentration" |
| 264 | Line 4 | Should read "is therefore", not "this therefore" |
| 264 | Line -2 | Should read "lending rates and deposit rates", not "lending rates deposit rates" |
| 272 | End of 2nd paragraph in box | Should read "from", not "form" |
| 278 | Second line | There is an extra "21" at the end of the line; it should be deleted |
| 279 | Question 10.19, third line | Should read "factors", not "factores" |
| 282 | Fifth paragraph, third line | Should read "qualify", not "quality" |
| 284 | Box 11.1, first line | Should read "immune", not "imune" |
| 285 | First paragraph of mathematical section | Append "Market demand is given by D = a - p" |
| 286 | Second bullet point | Should read "number two supplier", not "number three supplier" |
| 287 | Last paragraph in first math section | Should read "c'=c", not "c=c^k" |
| 289 | Line -4 | Should read "these estimates", not "these are estimates" |
| 291 | Line -5 | Should read "a firm's exit", not "an firm exit" |
| 303 | Line 3 | Should read "Luton", not "Lutton" |
| 306 | First line in third paragraph | Should read "incumbent chooses", not "entrant chooses" |
| 306 | Third line in 'The Stackelberg Model' box | Should read "with", not "which" |
| 307 | Last line in first math section | Should be "than Firm 2", not "than Firm 1" |
| 307 | Second equation | Should be "+2c1", not "-2c1" |
| 307 | Box 'Entry Deterrence in Capacity Setting Games', first inequality | Sign should be reversed to greater or equal |
| 307 | Box 'Entry Deterrence in Capacity Setting Games', last equation | Should be πD1= (a-c2-2(bE)0.5)(c2-c1+2(bE)0.5)/b |
| 308 | Figure 12.2 | Should read πB2, not πS2 |
| 311 | Fourth and fifth lines in main text | Should read "Still another example", not "Still another telecommunications example" |
| 318 | Eighth line | Should read "keep prices low is not", not "keep prices is not" |
| 319 | Line 6 in Low-cost signalling section | Should read "quasi-monopoly", not "quasi-monopoloy" |
| 321 | Line -2 in Microsoft section | Should read "1 billion", not "1 million" |
| 323 | Second line in main text | Should read "the predator must have", not "the prey must have" |
| 327 | Question 12.3, fourth line | Should read "increases in monthly fees and fees for local calls", not "increases in monthly fees and local calls" |
| 338 | Line 2 in third paragraph | Should read "part manufacturer M", not "manufacturer M" |
| 351 | Table 14.1, second row | Should be "squared feet", not "squared feed" |
| 353 | footnote c | Should be "Gumbel", not "Weibul" |
| 357 | Last inequality in advance material section | Should be d p1 / dp2 > 0, not < 0. |
| 365 | Line -5 | Should be "expenditures;", not "expenditures and;" |
| 371 | Line 4 | Should be "may be increased", not "may be increases" |
| 397 | Last line in first paragraph of Exercise 15.7 | Should be "decide how much to purchase", not "how much to pay" |
| 399 | First line | Should read "twenty-first century", not "twenty-first" |
| 399 | Footnote a | Should read "will then be made", not "will then made" |
| 405 | Last line | Should read "are equilibrium values", not "and equilibrium values" |
| 406 | Fifth line from bottom | Should read "we flip it around", not "we flit it around" |