Consumption and Saving Behavior of Older and Younger Baby Boomers in Korea

The 1998 Korean Survey of Family Income and Expenditures was used to examine the overall consumption and saving behavior of Korean baby boomers and compared the differences in consumption and saving behavior between older and younger boomers. The t -test results indicated that the younger boomers allocated a significantly higher percentage of their expenditures on food away from home, household appliances, transportation and communication than did the older boomers, whereas the older boomers spent higher amounts and allocated larger budget shares on their children's education than did the younger boomers. The results of Ordinary Least-Squares (OLS) regression analysis showed that, holding other factors constant, older boomers not only spent significantly more in the total consumption expenditures and education expenditures, but older boomers also saved significantly less than did younger boomers.     

Consumption Patterns of Chinese Children

In the ten-year period from 1990 to 1999, children's consumption has increased dramatically in proportion to family income. In 85% of urban families, children's average consumption is equal to one third or more of the family's income. Resources are being directed to children's food and dietary supplements, toys, travel, computers and other electronic equipment, and educational resources. Children perceive that they have a significant influence on the family's financial decision-making. Problems related to children's consumption include indulgence in unnecessary or harmful purchases, and conspicuous consumption that cannot be sustained by the family's income. While some child-focused spending is viewed as enriching development, other expenditures may harm the family's economic well-being and foster an overly materialistic outlook among children.     

当代大学生媒介消费行为统计分析

当今世界信息传播革命正在兴起,信息技术的迅猛发展推动着大众传播媒介走向现代化。大众传播媒介的发展对大学生的影响尤为深刻。本文拟对当代大学生对大众传播媒介的使用状况作粗浅探索和分析,并试图研究互联网的使用与其它传播媒介的关系。     

医疗消费的经济学探讨

医疗消费是一个倍受大众关注的特殊的社会行为 ,关于如何正确认识与看待这一问题 ,理论界尚未展开更深入的研究。为此 ,从经济学的角度来探讨医疗消费这个关系到每个人切身利益的问题 ,并浅析公费医疗在市场经济条件下的不合理性 ,是十分必要的。     

大学生体育消费现状调查研究

体育消费是体育经济的一种具体表现形式 ,也是体育的社会价值的一种体现。通过对辽宁工程技术大学大部分学生体育消费和体育消费观的调查 ,说明有相当一部分学生已具备良好的体育意识 ,并有自觉的体育消费行为 ,但处于低消费阶段 ,同时对体育经济在高校的效益也有一定的认识。为体育经济和体育事业的发展提供了理论基础 ,也为高校学生更好、更合理地进行体育消费提供了理论依据     

强苯赛对水稻幼苗根系生长的影响

强苯赛浸种对水稻幼苗的根长、根重和根系体积都有促进作用,能提高根尖细胞分裂指数,能使胚根尖切段伸长和发根力增强,并能提高胚乳中淀粉酶活性和根系的呼吸强度。     

隆线溞(Daphnia carinata king)的呼吸代谢测定

本文用Winkler法测定隆线溞(Caphnia carinata king)不同龄期个体的耗氧量及二幼龄个体在不同温度下的耗氧量。测得幼龄与成龄两阶段,其耗氧量分别以4.88×10~(-2)与1.695×10~(-1)的速率随体重增加而增大,耗氧率则分别随体重的增加而逐渐降低;在常温下,隆线溞耗氧量Y与温度X呈Y=3.69×10~(-3)×1.07~x的指数函数关系,由此得到,17℃—19℃是隆线搔生长速率快而耗氧量较小的最适人工培养温度。     

Residual analysis for spatial point processes (with discussion)

Summary.  We define residuals for point process models fitted to spatial point pattern data, and we propose diagnostic plots based on them. The residuals apply to any point process model that has a conditional intensity; the model may exhibit spatial heterogeneity, interpoint interaction and dependence on spatial covariates. Some existing ad hoc methods for model checking (quadrat counts, scan statistic, kernel smoothed intensity and Berman's diagnostic) are recovered as special cases. Diagnostic tools are developed systematically, by using an analogy between our spatial residuals and the usual residuals for (non-spatial) generalized linear models. The conditional intensity λ plays the role of the mean response. This makes it possible to adapt existing knowledge about model validation for generalized linear models to the spatial point process context, giving recommendations for diagnostic plots. A plot of smoothed residuals against spatial location, or against a spatial covariate, is effective in diagnosing spatial trend or co-variate effects. Q – Q -plots of the residuals are effective in diagnosing interpoint interaction.     

倡导勤俭自强的消费伦理观--关于合肥地区大学生问卷调查的思考

文章结合学习宣传和贯彻落实《公民道德建设实施纲要》,主要回答为什么必须重视大学生消费伦理观的新变化,大学生消费状况及消费伦理观有哪些新变化,以及正确引导大学生消费伦理观的现实意义。     

深圳“九五”时期居民消费研究

以“九五”时期深圳居民生活消费统计数据为依据,从深圳居民的收入、支出水平入手,对深圳居民的消费水平、消费结构及变化特点进行分析,探讨“九五”时期深圳居民消费存在的主要问题。