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Three essays on teen risky behaviors.

Ouyang, Lijing.

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Three essays on teen risky behaviors.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Three essays on teen risky behaviors./
作者:	Ouyang, Lijing.
面頁冊數:	116 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-07, Section: A, page: 2656.
Contained By:	Dissertation Abstracts International66-07A.
標題:	Economics, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3183941
ISBN:	9780542252938

Three essays on teen risky behaviors.
Ouyang, Lijing.

Three essays on teen risky behaviors. - 116 p.

Source: Dissertation Abstracts International, Volume: 66-07, Section: A, page: 2656.

Thesis (Ph.D.)--Duke University, 2005.

This dissertation consists of three essays on teen risky behaviors, including teen substance use and teen sex and fertility. Under the economic framework of expected utility maximization, the analyses incorporate the features of teen risky behaviors that distinguish teens from other age groups. Taking into account these characteristics are shown to be important in understanding teen behavior patterns and in designing effective prevention policies and programs.

ISBN: 9780542252938Subjects--Topical Terms:

1017424
Economics, General.

Three essays on teen risky behaviors.
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520 $a This dissertation consists of three essays on teen risky behaviors, including teen substance use and teen sex and fertility. Under the economic framework of expected utility maximization, the analyses incorporate the features of teen risky behaviors that distinguish teens from other age groups. Taking into account these characteristics are shown to be important in understanding teen behavior patterns and in designing effective prevention policies and programs.
520 $a The first essay identifies the influences of older siblings on their younger siblings' decisions to smoke cigarettes, consume alcohol, and use marijuana. Timing patterns of older siblings' behaviors are used to control for unobserved shared risk factors that affect both siblings. Strong causal sibling influences are found in all three risky behaviors. The influences of siblings are greater than the effects of price and policies designed to limit youth access to cigarettes. The sibling influences offer a channel of birth order effects. Later-born teens engaged in risky behaviors at younger age than did their earlier-born siblings not because they were 'born to rebel', but because they were subject to older siblings' risky behaviors. The implication is that parental involvement in deterring earlier-borns' risky behaviors has spillover effects on the later-borns. Outreach programs to families with multiple children are important in deterring teen risky behaviors within families.
520 $a The second essay uses subjective expectations data on pregnancy probabilities to investigate whether teenagers form rational expectations regarding pregnancy, how their perceived pregnancy risks are determined, and whether unexpected pregnancies affect their abortion decisions. The analysis shows that on average teenage girls form rational expectations on their pregnancy risks. The expectations are formed according to their sex and contraception choices, taking into account factors affecting expected utility from sex and contraception, including family environment and schooling experiences. Their abortion decisions do not depend on the unexpectedness of their pregnancies.
520 $a The third essay develops a dynamic discrete choice model of teen sex and fertility behaviors that incorporate habit persistence. Habit persistence has two sources here. The first is a "fixed" cost of having sex, which relates to a moral or psychological barrier that has been crossed the first time one has sex. The second is a "transition" cost whereby once a particular relationship has progressed to sex, it is difficult to move back. The model examines the role that habit persistence may have in differentiating long- and short-run effects of programs that encourage or discourage contraception use. Programs that encourage contraception decrease teen pregnancies in the short run but increase pregnancies in the long run. Programs that deter early sexual behavior have feedbacks throughout the rest of the teenage years.
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