Midterm. Answer Key. 1. Give a short explanation of the following terms.
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1 ECO 33-00: on nd Bnking Souhrn hodis Univrsi Spring 008 Tol Poins 00 0 poins for h pr idrm Answr K. Giv shor xplnion of h following rms. Fi mon Fi mon is nrl oslssl produd ommodi h n oslssl sord, oslssl xhngd nd nno produd or ounrfid non ls u h govrnmn. Fsil s Th s of possil lloions h ll gnrion n in, givn h vilili of rsours in h onom h priulr im. Th r of rurn on fi mon Unis of good h n oind in priod if on uni of good is sold for mon in priod. d Insid mon on issud priv inrmdiris. Rl inrs r Th numr of goods pid in inrs for h good ln.
2 . Considr n ovrlpping gnrions modl wih wo ounris: US ounr nd UK ounr. In h ounr h populion of vr gnrion is 00. Eh oung prson in US nd UK wns mon lns worh 0 nd 0 goods, rspivl. Th fi mon supplis r $400 in US nd 00 in UK. W r givn 00,, 0, 0, 400 nd. 00 Wih forign urrn onrols in ff, wh is h vlu of dollr? Of pound? Undr forign urrn onrols, vlus of urrn r drmind indpndnl, dpnding upon h ounr s mon mrk lring Find h xhng r of Briish pounds pr US dollr. I mns h US dollr n xhng for UK pound. Givn h xhng r ou found in pr, wh dos i mn if US xprins n ppriion of is xhng r priod? Wh fors n us suh hng? I implis h US dollr n xhng for mor hn UK pound priod ;. > W know h. n z z n Th US ould xprin n ppriion of is xhng r whn is populion is growing or h mon sok in UK is inrsing.
3 3 d Wihou forign urrn onrols in ff, find h vlu of h ounr s mon givn h xhng r ou found in pr. Wihou forign urrn onrols, w nno drmin h mon mrk lring of h ounr sprl nmor. Givn h xhng r w found in pr, w n find vlus of urrn sing h world mon mrk lring ondiion ] [400 ] [ Suppos h xhng r is sill fixd h sm r nd UK ripls is fi mon sok, whrs US prins no nw mon. How mn goods will UK gin in signiorg? If UK ripls is fi mon sok,, 600 whrs h sok of fi mon in US ss h sm,, 400 h vlu of pound will hng ] [400 ] [ Signiorg ] 00 3[600 [ ] 00 goods. Thrfor, UK will gin 00 goods from prining nw mon. f Wh would h opiml inrnionl monr ssm? Explin nd giv h rl world xmpl. Th opiml inrnionl monr ssm is o hv singl urrn mong nions. Using h singl urrn rdus os of xhng nd limins rnsion os whn rding. Th Europn Union is n xmpl whr EU ounris us h uro s hir sol offiil urrn.
4 3. Considr hr-priod-livd onom wih growing populion,. -. Thr r 00 iniil old - im. Individul is ndowd wih 00 goods whn oung, 0 goods whn old nd nohing whn middl-gd. Howvr, 0 goods r no nough for individul o surviv h vron wns o onsum mor hn 0 goods in h hird priod of lif. Thr r wo sss in h onom; fi mon nd pil. Th fi mon sok is growing h r of %. Cpil is onsidrd risk ss. Two priods fr pil is invsd, i ps rs of rurn of.8, 0.7, nd 0. wih proiliis 0.6, 0., nd 0.3, rspivl. W r givn 00, n., z., 00, 0 nd. 3 0 Wh r h r of rurn on fi mon nd h xpd r of rurn on pil? n. R of rurn on fi mon,. z. Expd r of rurn on pil, E X π X π X π X Wh do popl sill wn o hold fi mon lhough h r of rurn on fi mon is lowr? Popl hold fi mon us i is mor liquid. Fi mon hngs hnds mor frqunl nd n hld for shorr priods of im. Find h udg onsrins for individuls whn oung, middl-gd nd old, nd hn oin h lifim udg onsrin. Budg onsrin im :, m k :, m : 3, Xk 3 Solving for m priod nd k priod, rpling hm priod, w should g h lifim udg onsrin s; X X.3.3 4
5 d Suppos individul lws wns o invs 0 goods in pil. Find h ol oupu im, GDP. GDP Xk Sin w r givn h 00 nd n., w n find.. 00 Thrfor, GDP goods 4. Considr n onom wih onsn populion 00 in whih popl wish o hold nk hking dposis lws worh 0 goods. Individul s ndowmn is 00 goods in h priod. Th uninrmdid pil pr oung prson k is 0 goods in h priod. Dposis nks r suj o rsrv rquirmn γ of 0%. Bnks invs h rmindr of ll dposis ino pil. Cpil oms produiv fr wo priods, nd h gross r of rurn on pil x is. pr priod. Th ol mon sok is $0,000 in vr priod. W r givn 00, h 0, 00, k 0, γ 0., x. nd $0000 Wh do w ll nk finnil inrmdir? Bnk s s finnil inrmdir us i provids srvi orring h mismh of muriis wn liquid mon nd illiquid pil. Bnk ps dposis wih on-priod rurn nd us hm o invs in pil wih wo-priod rurn. Th rirg n md hrough rof-rurn diffrns. How muh would hng if h monr s wr inrsd 00? W know h for givn rsrv rquirmn, / γ. So for his prolm, 00 /
6 Find h ol pil sok nd rl GDP im. Tol pil k γ h goods. GDP Xk γ Xh goods. d ow ssum h nks r llowd o orrow from h nrl nk. Explin inuiivl how i will ff h ol pil sok nd GDP. Th nrl nk lnding is gnrll quivln o drs in h rsrv rquirmn. I llows nks for mor inrmdiion of pil. As h rsul, ol pil inrss, nd hn, GDP. Suppos h nrl nk llows nks o orrow δ 0 prn of rquird rsrvs γ h gross inrs r ψ of.08. Wh is h gross rl r of rurn on dposis h will offrd nks in ompiiv onom? Bnks now n orrow 0 prn of rquird rsrvs from h nrl nk. W know h for h inrs r of lon, h inrs r h nks will offr should, n r γ [ γ δ ] x ψδγ z 0. [ 0. 0.]
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