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1.
Sadao Tomizawa Nobuko Miyamoto Kouji Yamamoto Akinobu Sugiyama 《Statistica Neerlandica》2007,61(3):273-283
For square contingency tables with ordered categories, CAUSSINUS [Annales de la Faculté des Sciences de l'Université de Toulouse (1965) Vol. 29, pp. 77–182] and AGRESTI [Statistics and Probability Letters (1983) Vol. 1, pp. 313–316] considered the quasi-symmetry and the linear diagonal-parameter symmetry models, respectively, which have multiplicative forms for cell probabilities. This paper proposes two kinds of models that have the similar multiplicative forms for cumulative probabilities that an observation will fall in row (column) category i or below and column (row) category j (> i ) or above. The endometrial cancer data are analyzed using these models. 相似文献
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Hiroshi Honda M.D. Hideo Onitsuka Eisuke Adachi Kouichirou Ochiai Masaki Gibo Koutarou Yasumori Takashi Matsumata Keizou Sugimachi Kouji Masuda 《Empirical Economics》1993,18(3):247-252
The capabilities of computed tomography (CT), ultrasonography (US), and magnetic resonance (MR) imaging were studied in order to determine the role of each of these noninvasive examinations for estimating the T-factor of hepatocellular carcinomas (HCCs). Fifty-one patients with surgically proven HCCs received CT (50 patients), US (46 patients), and MR (44 patients). The images of CT, US, and MR were prospectively evaluated for main tumor size, intrahepatic metastases, and vascular invasion, which compose the T-factor of HCC, and compared to pathological results. The sizes of the main tumor were estimated correctly by all examinations. For estimating intrahepatic metastases, US (74%) and MR (73%) were superior to CT (65%). For estimating portal invasion, CT (79%) was superior to US (70%) and MR (66%), because CT could demonstrate the segmental staining caused by portal invasion. The estimates of hepatic venous invasion were difficult during any of the examinations. We conclude that presurgical evaluations of the T-factor require the use of US and CT or MR and CT. 相似文献
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The literature suggests that security design can be used to manipulate the information content of securities prices [what
is referred to as the “informational leverage effect” in Boot and Thakor (J Finance 48, 1349–1378, 1993)]. The informational leverage effect arises in this literature in a market microstructure environment in
which noise trade is exogenous, which is a fairly standard assumption dating back to the framework developed in Grossman and
Stiglitz (Am Econ Rev 70, 393–408, 1980). This assumption is relaxed in our paper, and we show that the informational effects described in the related
literature become less clear cut when noise trading activity is endogenous. We find that the intensity and direction of these
effects depends crucially on the parameters describing the modeling environment. The elegant point of the informational leverage
literature is that these effects arise largely independently of such parameters, but with endogenous noise trading that is
no longer true. This literature may, therefore, lead to too strong conclusions being drawn about the relationship between
information revelation and security design.
We are very grateful for the helpful comments made by an anonymous referee. 相似文献
5.
Tatsuyoshi Masuda 《Small Business Economics》2006,26(3):227-240
This paper examines regional characteristics affecting the latent entrepreneurship in Japan, focusing on regional macroeconomic
indicators, existing density of establishments and human capital, and business start-up assistance programs by local governments.
We define two types of people having the latent entrepreneurship as follows (1) persons merely wishing to be a self-employed
worker, and (2) persons preparing to be a self-employed worker out of the former definition. Total cash earnings and the unemployment
rate, which are the macro economic indicators, had positive effects on latent entrepreneurship in Japan. Judging from the
significance of their estimations, the latent entrepreneurship is explained by the “Push hypothesis”. If we examine the problem
more closely, it is necessary for us to identify government assistance programs which make the latent entrepreneurs more self-employment. 相似文献
6.
K.A. Laferriere E.J. Crighton J. Baxter L. Lemyre J.R. Masuda F. Ursitti 《Journal of Risk Research》2016,19(3):271-287
Young children are more highly exposed and vulnerable to environmental health hazards than adults due to a variety of physiological and behavioural factors. Despite the significant responsibility mothers typically bear in managing their children’s health, little is known about how they perceive and negotiate these risks in their day-to-day lives. To better understand mothers’ environmental health risk perceptions and associated protective actions across socio-economic and geographic contexts, a telephone survey was conducted among new mothers (n = 606) recruited through two Public Health Units in Ontario, Canada. Analyses revealed that approximately half of the respondents were moderately or highly concerned about environmental health risks, ranging in nature from household products to outdoor air contaminants. Factors affecting the likelihood of experiencing concern included lower income and lower levels of perceived control. With regard to protective actions, 43% reported taking three or more actions to reduce environmental health risks to their children, with the likelihood of taking action being negatively affected by factors including low income and first language other than English or French, and positively affected by being a first-time parent (primiparous). This study contributes to our understanding of environmental health risk perceptions and associated protective behaviours among new mothers, and has implications for the development of more context-focused risk management and communication strategies. 相似文献
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Satoshi Shimizutani Hiroyuki Yamada Haruko Noguchi Yuichiro Masuda Masafumi Kuzuya 《Applied economics》2013,45(22):2307-2325
We explore the causal relationship between hospital length of stay (LOS) and re-hospitalization for Acute Myocardial Infarction (AMI) patients in Japan, where the average LOS is the longest among OECD countries. Using chart-based data, we address the endogeneity between LOS and re-hospitalization probability by using an exogenous variation based on Rokuyo (the six basic labels allocated to each day), which is found to be irrelevant to admission day but relevant to discharge day. While we do find a significant and positive association between LOS and re-hospitalization probability in the OLS estimation, we do not find a significant relationship once LOS is instrumented by Rokuyo in various instrumental variable estimations. This implies that additional stay that was induced owing to patient’s choice of preferred Rokuyo at discharge has no effect on re-hospitalization probability. 相似文献
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Yoneji Masuda 《Futures》1985,17(5):479-494
By linking recent research findings from palaeoanthropology and sociobiology with advanced information science, and by use of historical analogy, a hypothesis for the genesis of ‘new man’—homo Intelligens—is derived. Key elements are: human evolution; the fifth and sixth generation computers, the development of new communications media and advanced robotics; and gene—culture coevolution. From this hypothesis the nature of the human society of homo Intelligens is postulated as a global citizens community—a synergetic society of mutual aid with no need for states and armed forces, and with a bio-ecological economic system based on restrained consumption, reutilization of resources, and synergy between production and utilization. 相似文献
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This paper analyzes management and control issues linked to the employment of traders who engage in proprietary trading activity
for their employer (a bank). The bank can invest in control and monitoring of these traders, and the paper evaluates the profitability
of such investments. We find that the investment in control is distorted due to interfering market microstructure effects.
The bank is inclined to underinvest in control of its traders because traders who are not too closely monitored generate extra
liquidity in the market. Bank supervision might be needed, therefore, to correct for such effects. We evaluate the effectiveness
of the value-at-risk capital adequacy requirement proposed by the Bank for International Settlements, and find that this approach
correctly targets the banks that are the most vulnerable, i.e. those that are the most at risk of underinvesting in its control
and monitoring systems.
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