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31.
A vector autoregressive model containing ocean grain freight rates, grain shipments, idled tonnage, new carrier deliveries and fuel prices is used to evaluate dynamic linkages in the ocean grain transport market. Dynamic relationships are of particular importance in ocean freighting months because freighting services are often contracted several months before shipment. In addition, such markets may be slow to adjust to shocks because of significant short-run fixities in shipping services. Ocean grain freight rates are found to be responsive to fuel prices and new ship deliveries, but are not affected by demand shocks. Ship idling rates are found to be sensitive to fuel prices, grain shipments and freight rates. Significant adjustment lags are revealed. 相似文献
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We consider an agent who invests in a stock and a money market and consumes in order to maximize the utility of consumption over an infinite planning horizon in the presence of a proportional transaction cost
. The utility function is of the form U(c) = c1-p/(1-p) for p > 0,
. We provide a heuristic and a rigorous derivation of the asymptotic expansion of the value function in powers of
, and we also obtain asymptotic results on the boundary of the no-trade region.Received: July 2003, Mathematics Subject Classification (1991):
90A09, 60H30, 60G44JEL Classification:
G13Work supported by the National Science Foundation under grants DMS-0103814 and DMS-0139911. 相似文献
34.
Jane Londerville 《Real Estate Economics》1998,26(3):537-553
Apartment-building repeat-sales data are used to test a trading rule. Property values are estimated through regression; if the actual price is less than the estimated value, the property may be "undervalued." Returns are calculated for these "undervalued" properties and adjusted for risk using the Sharpe ratio. A test is done of whether these ratios are significantly different for different portfolios. The "undervalued" properties have higher appreciation returns, but once these are adjusted for risk, the differences in returns are not significant. The paper contributes to the real estate efficiency literature and suggests a workable method for comparing the performance of real estate portfolios on a risk-adjusted basis. 相似文献
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36.
Jane L. Butt 《Accounting, Organizations and Society》1989,14(5-6)
This research examined the effects of information order and hypothesis-testing strategies on audit judgements. Auditors started with high or low prior beliefs about an internal control system and then reviewed both positive and negative evidence. The results suggest that, unless specifically requested to do so, auditors do not generally seek confirming evidence. We also found that prior beliefs have an effect on the importance of information order: with high prior beliefs, subjects' judgements were unaffected by information order, while low prior beliefs were associated with a recency effect. 相似文献
37.
Jane
Kabubo‐mariara
Domisiano K. Mwabu 《The South African journal of economics. Suid-afrikaanse tydskrif vir ekonomie》2007,75(3):572-593
This paper investigates the determinants of demand for schooling in Kenya. Probit and ordered probit methods are used to model enrolment and attainment respectively. The results show that child characteristics, parental education and other household characteristics, quality and cost of schooling are important determinants of demand for education services in Kenya. The results further show that girls would be more affected by policy changes than boys. The findings call for targeting in efforts to boost and sustain demand for schooling in Kenya. The study recommends immediate policy interventions focusing on improving quality of education and poverty alleviation. 相似文献
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39.
Jane Cummings 《Business ethics (Oxford, England)》2001,10(1):45-52
This paper explores the type of stakeholder engagement currently being undertaken by many organisations as part of social and ethical accounting, auditing and reporting (SEAAR) processes. Specifically, the paper seeks to determine the extent to which current corporate practice iteratively promotes stakeholder participation in collaboratively designing accountability programmes, or whether it merely is a new term for canvassing stakeholder opinions. Arnstein's Ladder of Citizen Participation is used as a conceptual model for positioning contemporary methods of stakeholder dialogue. The findings from interviews with representatives from twenty‐nine UK and transnational organisations actively engaged in stakeholder dialogue are presented. This paper concludes that contemporary organisations seem to be seeking to engage with stakeholders in partnerships, yet their attempts still fall short of what Arnstein called Citizen Control, the level of achievement that non‐governmental organisations would like stakeholder engagement to attain. 相似文献
40.