Economics Tripos Part I Paper 3 Past Exam Questions


This document last updated: 27 March 2018.

These pages provide comments on past exam papers for the Economics Tripos Part I Paper 3 (Quantitative Methods in Economics). Where there is no comment for a question, it probably means I've not yet had a go at it, or that it doesn't exist. Make sure you check my corrections page too.


Please note: I've not supervised the Statistics part of Paper 3 this year, so I'm not the best person to advise on which past Statistics questions are on material which has not been covered this year.


Key:
OK: at least broadly OK
N/A: No longer on syllabus, as I understand it
OK? or ?: Problem (small or large): you might prefer to avoid this question

Part 1 Paper 3 2003- (covers both maths and statistics)

20032004200520062007
A1OKVery pruned! Bit unclearOKOKOK but ignore the "hence"
A2OKOKOKOKOK
A3OKOK but tediousDullOKOK
A4OKOKOKOKOK (a) not easy
A5OKOKOKOK (Good)OK
A6OKOKOKOKOK
B1OKOK except (a) a bit confusingOK but longOKOK except question should say G = G_bar - tY, not G = G_bar + tY
B2OKOK (relatively easy)TediousOK (Bit tedious as usual)OK except the very last bit, which is beyond Year1 syllabus
C1OKOKOKOKOK (c) and (d) not easy
C2OKOK (Good)OK (bit tedious)OKOK but time-consuming
C3OK (though (c) a bit puzzling)OK but too long without a spreadsheetOK (though a bit vague in places)(a) not easy (b) OK (Good)
C4OKBit oddOKOK except (d) is too vagueSlightly strange and subjective
C5OKOKStupidly long without a spreadsheetOKOK
C6OKOKOK(a) OK (b) OK (c) Don't see the point
C7(b)?OK
D1OKTedious & (a) and (c) not clearOKOK except tediousDataset rather unrealistic!
D2OKBadly designedOK (though (b) is a bit tedious)Seems far too time-consuming done by handInteresting, though I'm not sure what they wanted for (f)
D3OKOK except (f) not clear
D4(c)?

20082009
A1Hard for section A(a) quite hard (b) horrendous
A2OKOK
A3OK (quick)OK though you don't need to solve the equation!
A4OKWeird and confusing
A5OK
A6OK
B1Seems to have an error in that the determinant (part (b)) could be positive or negativeOK
B2Interesting but long, error-prone and (e) unclear(a)-(c) OK though error-prone; (d) not on syllabus now
C1OKOK - slightly unusual
C2UnclearOK (Good)
C3OK except (b) ambiguousOK though a bit contrived and long
C4UnclearOK
C5OK (quick)
C6OK
C7
D1OK (quick for section D)OK except too long and not clear if one has to test "assumption" of independence in (c)(i)
D2Long and (d), (e), (f) unclearOK
D3
D4

20102011201220132014
A1(b) is badly-wordedOK (Good)OKOK (quick)OK (useful)
A2OK (fairly easy)Useful though (ii) could be long or short(a) odd and not very fair (b) fineOKI found (b) hard, though I'm not an economist
A3OK (fairly easy)OK (Good)(a) is ambigious in that the matrix is not symmetric unless alpha=-2OK (quick)OK
A4OK (fairly easy)OK - "proportionate" could be clearerOKOKIrritating
B5OK (very quick for section B)OK but very error-proneOKGhastlyAmbiguous in places
B6OK (very quick for section B)OK though last bit unclearNot well-worded, numbers inconvenient but otherwise OKOKishOK given micro definitions
C7OKOKOK (fairly easy)OK (quick)OK (easy but useful)
C8OKOKOK (easy)OK (good)Bayes with a twist: interesting
C9OKA bit contrived and confusingOK (good, though (a) is a bit vague)OK (very quick)Sx^2 and Sy^2 include the divisor of (n-1) from now on (older papers did not)
C10OKHumOKOK (useful)Straightforward
D11Absurdly long in (a); (b)(v) should say Q2 and Q3Time consuming and confusingOK though too short for Section D, and (d) unclearOK(b) does not expect a quantitative analysis, one presumes
D12OK, though much quicker than D11OK (Good if quick) - much shorter than D11OK though unclear on how much is wantedOKOK

201520162017
A1Unclear how many terms to take in (c)Unclear how many terms to take in (c)OK
A2OK and useful but a bit long for an examOKOK
A3OK and usefulOKOK, though (a) ambiguous and (b) not easy
A4OK but rather longRather vagueOK
B5OK but longOKOK (assume price discrimination not present in (e))
B6OK but (again) longOK and interestingOK but long
C7(d) is wrong; otherwise OK and interesting though quickOKOK but long
C8OKHard unless it's done in lecturesOK (a bit different)
C9OKOKOK
C10Very quick?OK
D11Unclear what (a) wants; otherwise OKOKOK (good)
D12OKOKOK

EQEM (the Maths part of Paper 3 before 2003)

Apr-99 Oct-99 Apr-00 Oct-00 Apr-01 Oct-01 Apr-02
A1 OK OK

OK OK OK OK OK
A2

OK OK OK? OK OK OK
A3 OK OK OK OK OK OK OK
A4 OK OK OK OK OK OK OK
A5

OK OK OK? OK OK OK
A6 OK OK OK OK OK OK OK
A7 OK OK OK OK OK OK OK
A8

OK OK OK OK ? OK
A9 OK OK OK OK OK? OK OK
B10 OK OK

OK OK OK OK? OK
B11

OK ? OK OK OK
B12

OK OK OK OK N/A
B13 OK

OK OK OK? OK OK
B14

OK

OK OK OK
B15

OK (c)? OK OK (c)?

Part 1 Paper 3 1999-2002 (covers only statistics during this period)

1999 2000 2001 2002
A1 OK N/A OK OK
A2 OK OK OK N/A
A3 OK OK OK OK
A4 OK OK OK OK
A5 OK OK OK OK
A6 OK OK OK OK
A7 OK OK ? OK
A8 OK OK OK OK
A9 N/A OK/? ? OK
A10 OK OK/? N/A OK/?
B11 OK N/A N/A N/A
B12 OK N/A OK OK

B13 OK OK OK OK
B14 N/A N/A OK OK
B15 N/A OK ? N/A

Ian Rudy (graphic containing email address for iar1)