• 제목/요약/키워드: Cobb-Douglas utility

검색결과 4건 처리시간 0.017초

PORTFOLIO AND CONSUMPTION OPTIMIZATION PROBLEM WITH COBB-DOUGLAS UTILITY AND NEGATIVE WEALTH CONSTRAINTS

  • ROH, KUM-HWAN
    • Journal of applied mathematics & informatics
    • /
    • 제36권3_4호
    • /
    • pp.301-306
    • /
    • 2018
  • I obtain the optimal portfolio and consumption strategies of an investor who have a Cobb-Douglas utility function. And I assume that there is negative wealth constraints. This constraints mean that the investor can borrow partially against her future labor income.

제품-서비스 통합시스템(Product-Service System)에서의 수익분배모형 (Profit Sharing Model in Product-Service System)

  • 김진민;박진수;박광태;김광재;홍유석
    • 한국경영과학회지
    • /
    • 제36권4호
    • /
    • pp.81-89
    • /
    • 2011
  • In recent business environments, the competition among firms is shifting from the competition based on individual firm only to the competition based on alliance of firms. This is because it is not easy for a firm to perform all functions which consumers want. Thus, it is more effective to combine core competencies of different firms based on a strategic partnership. It is essential to establish a strategic partnership and this strategic partnership is a key success factor in PSS(Product-Service System) which combines products and services. In this paper, we propose a profit sharing model for PSS partnership. We first analyze customer's utility using Cobb-Douglas utility function and then propose the PSS profit sharing ratio considering functionalities and cost structures based on the combination ratio of PSS. This paper helps firms to develop partnership strategies for PSS.

HOW TO PREPARE FOR RETIREMENT? OPTIMAL SAVING, LABOR SUPPLY, AND INVESTMENT STRATEGY

  • Koo, Bon Cheon;Koo, Jisoo;Song, Hana;Yoon, Hyo-Bin;Kim, Min-Seok
    • Journal of the Korean Society for Industrial and Applied Mathematics
    • /
    • 제18권4호
    • /
    • pp.283-294
    • /
    • 2014
  • In this paper we study consumption-labor supply decision of an agent who prepares for retirement at a known time in the future. The agent is assumed to have a preference which is represented by the von Neumann-Morgenstern utility function in which the felicity function has constant relative risk aversion over the composite of consumption and leisure. The composite is obtained by the Cobb-Douglas function. A general problem has been studied by Bodie et al. (2004). We contribute to the literature by deriving the Slutsky equations and conducting comparative statics. In particular, we show that wealth effect can exhibit an interesting property depending upon the time until retirement, as the interest rate increases.

한중일 3개국의 화폐통합과 기축통화 설정에 관한 연구 (Monetary Unification in North East Asian Economies and Setting an Anchor Currency by CNY and JPY)

  • 이현재
    • 국제지역연구
    • /
    • 제14권2호
    • /
    • pp.61-78
    • /
    • 2010
  • 본 연구는 북미경제권, 유럽경제권과 함께 세계 3대 경제권을 형성하고 있는 동북아시아 경제권의 한국, 중국, 및 일본의 화폐통합이나 화폐통합이 이루어졌을 때의 기축통화 선정 가능성을 실증적으로 검증하기 위한 시도이다. 분석방법으로는 원화(KRW)가 뉴메레르(numeraire)인 Walras 모형을 구축하고 2SLS 모형과 GARCH-M 모형으로 일반균형의 균형가격을 산정하였다. 위안화나 엔화가 동북아시아의 기축통화가 되기 위해서는 추정계수가 1(unity)에 접근해야 하지만 산정결과에 의하면 위안화나 엔화 모두 1(unity)로부터 크게 벗어나 기축통화로 사용하는데는 한계가 있음을 알 수 있다. 분석결과를 종합해 볼 때 최근 급부상하는 중국경제를 바탕으로 세계금융시장의 기축통화 가능성을 검토하고 있는 위안화나 동북아시아 금융시장에서 높은 비중을 차지하고 있는 엔화를 통한 동북아사아의 화폐통합 가능성은 크지 않기 때문에 이를 달성하기 위해서는 환율, 이자율, 물가, 및 국가재정 등의 전제조건이 충족되어야 할 것이다. 또한, 기축통화(anchor currency)라는 관점에서는 아시아통화단위(Asia currency unit)에 의한 화폐통합이 보다 현실성이 있다고 판단된다.