ECN 104 Chapter Notes - Chapter Chapter 4: Atkins Diet, Demand Curve, Normal Good

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ECN
Maī†Œket- a gī†Œoup of ī„uī‡‡eī†Œs aī…¶d selleī†Œs of a paī†Œtiī„ulaī†Œ pī†Œoduī„t
Coī…µpetitiī‡€e ī…µaī†Œket- laī†Œge ī…¶uī…µī„eī†Œs of pī†Œoduī„eī†Œs ī„oī…µpete ī‡ith eaī„h otheī†Œ to satisfī‡‡
the ī‡aī…¶ts aī…¶d ī…¶eeds foī†Œ all ī„oī…¶suī…µeī†Œs ī¾eaī„h has ī‡€eī†Œī‡‡ little effeī„t oī…¶ pī†Œiī„eīæ
Peī†Œfeī„t ī„oī…µpetitiī‡€e ī…µaī†Œket:
āž¢ All goods aī†Œe eī‡†aī„tlī‡‡ the saī…µe ī¾ī†‹ualitī‡‡īæ
āž¢ Noī…¶e of the ī„oī…¶suī…µeī†Œs oī†Œ selleī†Œs ī„aī…¶ haī‡€e huge effeī„t oī…¶ ī…µaī†Œket pī†Œiī„e
Quaī…¶titī‡‡ deī…µaī…¶d- aī…µouī…¶t of the good that ī„uī‡‡eī†Œs aī†Œe ī‡illiī…¶g aī…¶d aī„le to puī†Œī„hase
Laī‡ of deī…µaī…¶d- ī¾all faī„toī†Œs ī„eiī…¶g eī†‹ualīæ as the pī†Œiī„e of good/ seī†Œī‡€iī„e iī…¶ī„ī†Œeases,
deī…µaī…¶d foī†Œ the good/ seī†Œī‡€iī„e deī„ī†Œeases ī¾ī‡€iī„e ī‡€eī†Œsaīæ
Deī…µaī…¶d sī„hedule- a taī„le that shoī‡s the ī†Œelatioī…¶ship ī„etī‡eeī…¶ the pī†Œiī„e of a good
aī…¶d the ī†‹uaī…¶titī‡‡ deī…µaī…¶d
Quaī…¶titī‡‡ deī…µaī…¶d= ī†‹uaī…¶tiles deī…µaī…¶ded ī„ī‡‡ all ī„uī‡‡eī†Œs at eaī„h pī†Œiī„e
Deī…µaī…¶d ī„uī†Œī‡€e- shoī‡s hoī‡ pī†Œiī„e affeī„ts ī†‹uaī…¶titī‡‡ deī…µaī…¶d
Deī…µaī…¶d of a ī…¶oī†Œī…µal good is ī†Œelated to INCOME
Iī…¶ī„ī†Œease of iī…¶ī„oī…µe ī„ause iī…¶ī„ī†Œease iī…¶ ī†‹uaī…¶titī‡‡ deī…µaī…¶ded at eaī„h pī†Œiī„e, theī†Œefoī†Œe
shifts D ī„uī†Œī‡€e to the ī†Œight
Tī‡o goods aī†Œe suī„stitutes if aī…¶ iī…¶ī„ī†Œease iī…¶ the pī†Œiī„e of oī…¶e ī„auses aī…¶ iī…¶ī„ī†Œease iī…¶
deī…µaī…¶d foī†Œ the otheī†Œ.
Eī‡†. Iī…¶ī„ī†Œease of pī†Œiī„e of pizza iī…¶ī„ī†Œease deī…µaī…¶d foī†Œ haī…µī„uī†Œgeī†Œs ī¾shiftiī…¶g haī…µī„uī†Œgeī†Œ
deī…µaī…¶d to the ī†Œightīæ
Tī‡o goods aī†Œe ī„oī…µpleī…µeī…¶ts if aī…¶ iī…¶ī„ī†Œease iī…¶ pī†Œiī„e of oī…¶e ī„auses a fall iī…¶ deī…µaī…¶d foī†Œ
the otheī†Œ
Eī‡†. If pī†Œiī„e of ī„oī…µputeī†Œs ī†Œises, people ī„uī‡‡ feī‡eī†Œ ī„oī…µputeī†Œs aī…¶d theī†Œefoī†Œe less
softī‡aī†Œe ī¾softī‡aī†Œe deī…µaī…¶d ī„uī†Œī‡€e shifts leftīæ
Aī…¶ī‡‡thiī…¶g that ī„auses a shift iī…¶ toī‡aī†Œd a good ī‡ill iī…¶ī„ī†Œease deī…µaī…¶d foī†Œ that good aī…¶d
shift its ī„uī†Œī‡€e to the ī†Œight
Eī‡†. Atkiī…¶s diet ī„eī„oī…µe populaī†Œ iī…¶ 90s ī„aused aī…¶ iī…¶ī„ī†Œease iī…¶ deī…µaī…¶d foī†Œ eggs, shifted
egg deī…µaī…¶d ī„uī†Œī‡€e to the ī†Œight
Eī‡†peī„tatioī…¶s affeī„t ī„oī…¶suī…µeī†Œsā€™ ī„uī‡‡iī…¶g deī„isioī…¶s
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Document Summary

Ma(cid:396)ket- a g(cid:396)oup of (cid:271)u(cid:455)e(cid:396)s a(cid:374)d selle(cid:396)s of a pa(cid:396)ti(cid:272)ula(cid:396) p(cid:396)odu(cid:272)t. Co(cid:373)petiti(cid:448)e (cid:373)a(cid:396)ket- la(cid:396)ge (cid:374)u(cid:373)(cid:271)e(cid:396)s of p(cid:396)odu(cid:272)e(cid:396)s (cid:272)o(cid:373)pete (cid:449)ith ea(cid:272)h othe(cid:396) to satisf(cid:455) the (cid:449)a(cid:374)ts a(cid:374)d (cid:374)eeds fo(cid:396) all (cid:272)o(cid:374)su(cid:373)e(cid:396)s (cid:894)ea(cid:272)h has (cid:448)e(cid:396)(cid:455) little effe(cid:272)t o(cid:374) p(cid:396)i(cid:272)e(cid:895) All goods a(cid:396)e e(cid:454)a(cid:272)tl(cid:455) the sa(cid:373)e (cid:894)(cid:395)ualit(cid:455)(cid:895) No(cid:374)e of the (cid:272)o(cid:374)su(cid:373)e(cid:396)s o(cid:396) selle(cid:396)s (cid:272)a(cid:374) ha(cid:448)e huge effe(cid:272)t o(cid:374) (cid:373)a(cid:396)ket p(cid:396)i(cid:272)e. Qua(cid:374)tit(cid:455) de(cid:373)a(cid:374)d- a(cid:373)ou(cid:374)t of the good that (cid:271)u(cid:455)e(cid:396)s a(cid:396)e (cid:449)illi(cid:374)g a(cid:374)d a(cid:271)le to pu(cid:396)(cid:272)hase. La(cid:449) of de(cid:373)a(cid:374)d- (cid:894)all fa(cid:272)to(cid:396)s (cid:271)ei(cid:374)g e(cid:395)ual(cid:895) as the p(cid:396)i(cid:272)e of good/ se(cid:396)(cid:448)i(cid:272)e i(cid:374)(cid:272)(cid:396)eases, de(cid:373)a(cid:374)d fo(cid:396) the good/ se(cid:396)(cid:448)i(cid:272)e de(cid:272)(cid:396)eases (cid:894)(cid:448)i(cid:272)e (cid:448)e(cid:396)sa(cid:895) De(cid:373)a(cid:374)d s(cid:272)hedule- a ta(cid:271)le that sho(cid:449)s the (cid:396)elatio(cid:374)ship (cid:271)et(cid:449)ee(cid:374) the p(cid:396)i(cid:272)e of a good a(cid:374)d the (cid:395)ua(cid:374)tit(cid:455) de(cid:373)a(cid:374)d. Qua(cid:374)tit(cid:455) de(cid:373)a(cid:374)d= (cid:395)ua(cid:374)tiles de(cid:373)a(cid:374)ded (cid:271)(cid:455) all (cid:271)u(cid:455)e(cid:396)s at ea(cid:272)h p(cid:396)i(cid:272)e. De(cid:373)a(cid:374)d (cid:272)u(cid:396)(cid:448)e- sho(cid:449)s ho(cid:449) p(cid:396)i(cid:272)e affe(cid:272)ts (cid:395)ua(cid:374)tit(cid:455) de(cid:373)a(cid:374)d. De(cid:373)a(cid:374)d of a (cid:374)o(cid:396)(cid:373)al good is (cid:396)elated to income. I(cid:374)(cid:272)(cid:396)ease of i(cid:374)(cid:272)o(cid:373)e (cid:272)ause i(cid:374)(cid:272)(cid:396)ease i(cid:374) (cid:395)ua(cid:374)tit(cid:455) de(cid:373)a(cid:374)ded at ea(cid:272)h p(cid:396)i(cid:272)e, the(cid:396)efo(cid:396)e shifts d (cid:272)u(cid:396)(cid:448)e to the (cid:396)ight.

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