台灣經濟論衡-秋季號 - page 34

Ϊ༈όўϞ ၾ Շࡈਞᅰd݂͉˖̙৿ண €א މո֛dШਗ਼̤ɓ
ਞᅰ ண֛މ΍ᜊᅰΣඎ ٙՌᅰj dՉʕd މ ٙڷᅰΣඎd
Ͼਗ਼ό (5) ᄳϓj 4
(5 '')
Ϊ༈όٙ я Weibull ʱৣd̋˸Ϊ ٙ࿁ᅰ࠽ ஗ண֛ މ ٙᇞ׌ՌᅰdϾ
͎ᅰ عܸ ٙ ڷᅰΣඎd݂༈ό੻Τ މ ٙ˜ Weibull Ϟ͎ᅰ࿁ᅰᇞ׌ܵᚃᅼ
ۨ™fΪ͉˖ٙᝈ࿀ᅵ͉සўա྇ʘఱุ٫dՉତᔖʈЪಂගՑə༟ࣘႎණࣛʥ
ܵᚃπݺഹd݂࣬ኽ Baum and Ruhm (2013)d̙ਗ਼༈όʕ ၾ ٙ฿ЧՌᅰ
ᄳϓj
(6)
ɧeWeibull ᅼۨʘ˜̋஺͛ն™ࠇඎ
˜̋஺͛ն™(accelerated life) จϙj͛ն඄ಂ̋஺Չ˜̰઻€୞˟ࣛග™
(failure-time) אϼʷ஺ܓd݂ί͉˖ܸjତᔖʈЪಂගٙ඄ಂ̋஺Չ୞˟ٙ஺ଟf
Weibull ᅼۨՈϞவ၇˜͛ն̋஺™(life acceleration) ٙࠇඎዚՓdՉࡡΪνɨj
࠯΋dό (5') ᜑͪj຅ ࣛd d݂ dՉʕd
މ ʔՈࡈ ɛतᅄ΍ᜊᅰΣඎ€ ʘ˜ਞϽ€࿁๫˴᜗™(reference or
comparison subject) ٙତᔖʈЪಂගfਗ਼ ˾ɝό (5) א (5')d̙੻j
Չʕ (7)
༈όᜑͪdWeibull ᅼۨՈϞ˜̋஺͛ն™ٙจ଄dуjՈϞࡈɛतᅄ΍ᜊᅰΣඎ
€ ʘ˜˴᜗™ٙତᔖʈЪಂගʘ͛ն඄ಂ dމʔՈ ࡈɛतᅄ΍ᜊᅰΣඎ
ʘ˜ਞϽ˴᜗™ٙ ʘ ࠴iΪϤd٫ܝٙ ʘ୞˟஺ ܓdˢ٫ۃٙ ̋Ҟ
€஺ə ࠴f
4 ͵уd ̙ᔟ͟ ʘண֛Ͼ஗͎ᅰʷ (parameterized) f͟׵ ί ٙπᚃಂගlzމո֛d݂வᅵਗ਼
ண֛މԱπ׵ dԨʔᅂᚤ ҲစਞᅰʘԉЍfΝଣdҢࡁɰ̙৿ண މո֛dШਗ਼̤ɓਞᅰ ண֛މԱ
π׵ f
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