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1.
    
We consider the portfolio choice problem for a long‐run investor in a general continuous semimartingale model. We combine the decision criterion of pathwise growth optimality with a flexible specification of attitude toward risk, encoded by a linear drawdown constraint imposed on admissible wealth processes. We define the constrained numéraire property through the notion of expected relative return and prove that drawdown‐constrained numéraire portfolio exists and is unique, but may depend on the investment horizon. However, when sampled at the times of its maximum and asymptotically as the time‐horizon becomes distant, the drawdown‐constrained numéraire portfolio is given explicitly through a model‐independent transformation of the unconstrained numéraire portfolio. The asymptotically growth‐optimal strategy is obtained as limit of numéraire strategies on finite horizons.  相似文献   

2.
    
This paper discusses the problem of hedging not perfectly replicable contingent claims using the numéraire portfolio. The proposed concept of benchmarked risk minimization leads beyond the classical no‐arbitrage paradigm. It provides in incomplete markets a generalization of the pricing under classical risk minimization, pioneered by Föllmer, Sondermann, and Schweizer. The latter relies on a quadratic criterion, requests square integrability of claims and gains processes, and relies on the existence of an equivalent risk‐neutral probability measure. Benchmarked risk minimization avoids these restrictive assumptions and provides symmetry with respect to all primary securities. It employs the real‐world probability measure and the numéraire portfolio to identify the minimal possible price for a contingent claim. Furthermore, the resulting benchmarked (i.e., numéraire portfolio denominated) profit and loss is only driven by uncertainty that is orthogonal to benchmarked‐traded uncertainty, and forms a local martingale that starts at zero. Consequently, sufficiently different benchmarked profits and losses, when pooled, become asymptotically negligible through diversification. This property makes benchmarked risk minimization the least expensive method for pricing and hedging diversified pools of not fully replicable benchmarked contingent claims. In addition, when hedging it incorporates evolving information about nonhedgeable uncertainty, which is ignored under classical risk minimization.  相似文献   

3.
    
The classic approach to modeling financial markets consists of four steps. First, one fixes a currency unit. Second, one describes in that unit the evolution of financial assets by a stochastic process. Third, one chooses in that unit a numéraire, usually the price process of a positive asset. Fourth, one divides the original price process by the numéraire and considers the class of admissible strategies for trading. This approach has one fundamental drawback: Almost all concepts, definitions, and results, including no‐arbitrage conditions like NA, NFLVR, and NUPBR depend by their very definition, at least formally, on initial choices of a currency unit and a numéraire. In this paper, we develop a new framework for modeling financial markets, which is not based on ex‐ante choices of a currency unit and a numéraire. In particular, we introduce a “numéraire‐independent” notion of no‐arbitrage and derive its dual characterization. This yields a numéraire‐independent version of the fundamental theorem of asset pricing (FTAP). We also explain how the classic approach and other recent approaches to modeling financial markets and studying no‐arbitrage can be embedded in our framework.  相似文献   

4.
    
On October 31, 2006, the Canadian federal government announced increased taxation of income trusts, beginning in 2011. Using discounted cash flow analysis, we investigated timing of the market adjustment. Energy, utility, and business trust prices dropped by predicted amounts, indicating a rational market response. Following the announcement, however, affected sectors reacted differently: Energy and utility trusts were more likely to merge within their sectors while business trusts became private equity targets. The income trust case is a classic example of a natural event, and our results underscore the efficiency of Canadian capital markets. Copyright © 2010 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

5.
There is more to how individuals value money than just the denomination, based on several recent research articles. Could the very form of money, whether paper or metal, be a basis for such subjective valuation? A theoretical explanation based on the representativeness bias is explored and three experimental studies are employed to investigate this question. The results show that there is a bias in how the value of money is assessed based on whether that money is comprised of coins or bills. Bills are estimated to have more purchasing power than coins for the same objects, including for a different currency where a specific exchange rate is given. Copyright © 2014 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

6.
    
This paper studies the market viability with proportional transaction costs. Instead of requiring the existence of strictly consistent price systems as in the literature, we show that strictly consistent local martingale systems (SCLMS) can successfully serve as the dual elements such that the market viability can be verified. We introduce two weaker notions of no arbitrage conditions on market models named no unbounded profit with bounded risk (NUPBR) and no local arbitrage with bounded portfolios (NLABPs). In particular, we show that the NUPBR and NLABP conditions in the robust sense are equivalent to the existence of SCLMS for general market models. We also discuss the implications for the utility maximization problem.  相似文献   

7.
8.
    
Our study examines the announcement effects of 343 international greenfield investments by 289 U.S. firms for their impact on shareholder wealth. This paper develops five hypotheses based on the positive‐multinational‐network hypothesis. The evidence indicates that market reactions to announcements by firms entering developing countries are more favorable than those entering developed countries. In addition, the results show that the wealth effect for firms entering a host country for the first time is greater than for those that are already operating within the country. As for the long run, greenfield firms have shown improvement in their operating performance and stock performance. Copyright © 2012 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

9.
    
We investigate the empirical performance of default probability prediction based on Merton's (1974) structural credit risk model. More specifically, we study if distance‐to‐default is a sufficient statistic for the equity market information concerning the credit quality of the debt‐issuing firm. We show that a simple reduced form model outperforms the Merton (1974) model for both in‐sample fitting and out‐of‐sample predictability for credit ratings, and that both can be greatly improved by including the firm's equity value as an additional variable. Moreover, the empirical performance of this hybrid model is very similar to that of the simple reduced form model. As a result, we conclude that distant‐to‐default alone does not adequately capture the firm's credit quality information from the equity market. Copyright © 2007 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

10.
    
We examine why studies reach contradictory conclusions concerning the value of the household life cycle model as a predictive tool in consumer expenditure research. Using a database of roughly 14,000 Canadian households, we find that household life cycle variables do not generally enhance prediction over a more parsimonious model containing a basic set of socioeconomic and demographic variables, even when comparing less aggregated to more aggregated expenditure categories. However, they do enhance prediction for categories that are defined such that the typical users of the category fall into a fairly narrow age range. The theoretical and applied significance of our findings are discussed and directions for future research are offered. Copyright © 2007 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

11.
    
The theoretical concept of agency costs developed by Jensen and Meckling (1976) and Jensen (2005) are used to study the relationship between the quality of a firm's governance and its decision to issue a profit warning (PW) when it is overvalued. Based on a sample of Canadian companies between 2000 and 2004, results were only partially supportive of the hypotheses. The characteristics of the board seem to play only a secondary role in the decision to issue a profit warning when the firm is overvalued. On the other hand, as expected, governance mechanisms that factor in market values to align the interests of managers and directors with those of shareholders are negatively related to the profit warning decision. Copyright © 2008 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

12.
    
Do market participants evaluate the credibility of a firm's share repurchase announcement based on the firm's share repurchase history? Using a sample of 1,507 share repurchase programs for firms listed on the Toronto Stock Exchange from 1994 to 2005, we find that 69% of firms fail to acquire the target number of shares specified at announcement and many firms fail to repurchase any shares. We develop credibility indices and find a positive relationship between current announcement abnormal returns and completion credibility of previous announcements. We conclude that the market prices completion credibility of past share repurchase announcements in reacting to current repurchase announcements. Copyright © 2010 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

13.
    
Incorporating the social differentiations of gender, race, disability, sexual orientation, religion or belief, and age into UK equal opportunities and diversity legislation involved creating a new single equality body for Great Britain (England, Scotland, and Wales). This paper assesses the efficacy of an Equality and Diversity Mainstreaming approach established in Northern Ireland (NI) for this new agency. It also stresses the potential value of “intersectionality” to further policy planning and development. It is argued that the combination of the NI model underpinned by the concept of intersectionality could offer a way forward for the new agency where, importantly, the issue of gender remains one of the most important axes of domination. Copyright © 2010 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

14.
This paper investigates the real-time effects of sterilized foreign exchange intervention using official intraday intervention data provided by the Danish central bank. Our analysis employs a two-step weighted least squares estimation procedure. We control for macro surprises, address the issue of endogeneity, and carry out an array of robustness tests. Only when the direction of intervention is consistent with the monetary policy stance do we find that intervention exerts a significant influence on exchange rate returns.  相似文献   

15.
We consider the problem of pricing event tickets for initial sale when demand is uncertain. It is a standard industry practice for a performer to contract with a promoter who underwrites the event and offers the tickets for sale at a posted price that is sticky in that it is either fixed or costly to adjust once sales begin. Promoters, therefore, bear price risk, and we show that bearing the risk associated with posting a sticky offer price amounts to writing a put option on the ticket revenue. Further, we show that optimal posted-offer prices can be expected to result in rationing (surpluses) if price uncertainty and price elasticity of demand are material (immaterial), even when the demand forecast is accurate. Our results have implications for a more general set of pricing problems in which items are offered for sale at sticky posted prices.  相似文献   

16.
We aim to ascertain to what extent the better performance of European venture capital (VC)‐backed firms in high-tech industries is due to either ‘screening’ or ‘value added’ provided by VC investors. We compare portfolio firms' productivity growth before and after the first VC round, using a matched control group as benchmark. We show that productivity growth is not significantly different between VC and non-VC-backed firms before the first round of VC financing, whereas significant differences are found in the first years after the investment event. We also find that the value-adding services provided by VC investors ‘imprint’ the portfolio firm.  相似文献   

17.
    
This paper identifies the preferable bancassurance alliance structure from the bank's executive management perspective in the Taiwan area. In combination with the relevant literature and interviews with experts, this study adopts the modified Delphi method and the analytic network process (ANP) to construct an evaluation method and to determine ANP effectiveness. The results indicate that executives of banks and insurance companies most prefer financial holding companies. In this study, we apply ANP to construct an evaluation method and introduce four criteria and ten subcriteria for evaluating six alternative bancassurance alliance models. This paper supports ANP as an effective decision making tool. Copyright © 2010 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

18.
    
Strategic and industrial analysis reveals it is extremely difficult to enter a market dominated by an existing platform. In fact, direct or indirect network effects give the established company's platform a considerable competitive edge. This is true of the numerical computation market and the Matlab + Simulink platform by MathWorks. The case study of Scilab Enterprises helps identify conditions of viability for breaking into such a market. We find that alone, the platform strategy is doomed to fail, but accompanied by an open strategy, entering a platform market becomes possible. We hypothesize that a platform strategy is successful when associated with an open innovation process (integration of the open source community) and supported by a business ecosystem (a huge community of developers, users, and allies). Copyright © 2015 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

19.
This study examines the link between ownership structures and R&D activities in Canada. We hypothesize that highly concentrated ownership structures or the presence of controlling minority shareholders negatively affects R&D intensity of Canadian manufacturing firms. Our results show that the concentration of voting rights is negatively related to the level of R&D expenditure and R&D outcomes. Furthermore, we show that the level of separation between the voting and cash flow rights held by dominant shareholders of “Controlling Minority Structure” firms has a positive effect on R&D intensity but a negative effect on R&D outcomes. Copyright © 2010 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

20.
    
The most common measures of risk have traditionally been based on quantitative financial and accounting information. However, new information on risk management disclosed in companies' annual reports is generally qualitative or linguistic. As such, exploitation by decision makers becomes difficult. In this study, a fuzzy analysis approach is applied to risk information disclosed by 217 firms listed on the Toronto Stock Exchange. The results provide some evidence that these fuzzy measures are reasonable proxies for traditional financial and accounting measures. They also show that fuzzy measures can predict a significant amount of systematic risk. Copyright © 2008 ASAC. Published by John Wiley & Sons, Ltd.  相似文献   

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