Industrial firms' new product strategies

This research examines the impact of the firm's product innovation strategy on performance results. A total of 19 strategy dimensions were uncovered, which capture the specific elements of firms innovation strategies. Three dimensions of performance, independent of each other, were also identified and were found to be closely linked to the strategy adopted. For a high-impact new product program, an aggressive strategy emphasizing sophisticated technologies, heavy R&D spending, and a focused program was found appropriate. In contrast, a conservative strategy featuring avoidance of new markets and new product classes and a close synergy with the firm's technological resources resulted in a high success rate program. Finally, a high overall performance was the outcome of a balanced strategy: technologically aggressive, market oriented, and synergistic.     

Asymptotic optimal investment under interest rate for a class of subexponential distributions

We consider a classical risk model with the possibility of investment and positive interest rate for the riskless bond. The stock price movement is modelled as a geometric Brownian motion, the claim sizes are assumed to have a distribution belonging to a certain subclass of subexponential distributions. In this setting, we study the asymptotic behaviour of the optimal investment strategy under the ruin probability as a risk measure. This problem has been already considered before, but no results were obtained, for instance, for Weibull and Benktander-type-II distributions with certain parameters. We introduce a method which closes this gap.     

Optimal portfolio selection in nonlinear arbitrage spreads

This paper analytically solves the portfolio optimization problem of an investor faced with a risky arbitrage opportunity (e.g. relative mispricing in equity pairs). Unlike the extant literature, which typically models mispricings through the Ornstein–Uhlenbeck (OU) process, we introduce a nonlinear generalization of OU which jointly captures several important risk factors inherent in arbitrage trading. While these factors are absent from the standard OU, we show that considering them yields several new insights into the behavior of rational arbitrageurs: Firstly, arbitrageurs recognizing these risk factors exhibit a diminishing propensity to exploit large mispricings. Secondly, optimal investment behavior in light of these risk factors precipitates the gradual unwinding of losing trades far sooner than is entailed in existing approaches including OU. Finally, an empirical application to daily FTSE100 pairs data shows that incorporating these risks renders our model's risk-management capabilities superior to both OU and a simple threshold strategy popular in the literature. These observations are useful in understanding the role of arbitrageurs in enforcing price efficiency.     

Alexander Hamilton Church: His Family and Early Life

The contribution of Alexander Hamilton Church (1866–1936) to accounting and management science is well known. Yet his biographers (Urwick and Wolf, 1984; Vangermeersch, 1988) found that his family and early life were enigmas. This paper opens the curtains drawn by Church and reveals details of his notable ancestry and his early life, including his first six months in the United States and Canada.     

税收的经济增长效应——基于"经济人"行为选择的思考

通过分析税收对个人消费和企业投资行为的影响,探讨了政府税收影响之下的宏观经济增长.引入以税收为主要来源的各类政府支出,从而可以修正征税带来的扭曲.应用简单的模型分析了在政府税收收入和财政支出共同作用下的经济增长,并提出一国税收政策的衡量标准.     

Seat allocation distributions and seat biases of stationary apportionment methods for proportional representation

In a proportional representation system, apportionment methods are used to round the vote proportion of a party to an integer number of seats in parliament. Assuming uniformly distributed vote proportions, we derive the seat allocation distributions for stationary divisor methods. An important characteristic of apportionment methods are seat biases, that is, expected differences between actual seat numbers and ideal shares of seats, when the parties are ordered from largest to smallest. We obtain seat bias formulas for the stationary divisor methods and for the quota method of greatest remainders.Acknowledgement. We thank Friedrich Pukelsheim for many fruitful discussions.Received March 2004     

Equity Manager Selection and Performance

This paper introduces a methodology to select money managers and examines their performance over a 12 year period. We assess performance empirically by utilizing a series of well-known statistical procedures applied to other data. The value of this study is in the uniqueness of the data and the fact that it is the first study to use the performance of a set of pension fund money managers selected on the basis of a specific selection criteria.     

Nonrecursive separation of risk and time preferences

Recursive utility disentangles preferences with respect to time and risk by recursively building up a value function of local increments. This involves certainty equivalents of indirect utility. Instead we disentangle preferences with respect to time and risk by building up a value function as a non-linear aggregation of certainty equivalents of direct utility of consumption. This entails time-consistency issues which are dealt with by looking for an equilibrium control and an equilibrium value function rather than a classical optimal control and a classical optimal value function. We characterize the solution in a general diffusive incomplete market model and find that, in certain special cases of utmost interest, the characterization coincides with what would arise from a recursive utility approach. But also importantly, in other cases, it does not: The two approaches are fundamentally different but match, exclusively but importantly, in the mathematically special case of homogeneity of the value function.     

Time-consistent mean-variance reinsurance-investment strategy for insurers under CEV model

We consider an optimal time-consistent reinsurance-investment strategy selection problem for an insurer whose surplus is governed by a compound Poisson risk model. In our model, the insurer transfers part of the risk due to insurance claims via a proportional reinsurance and invests the surplus in a simplified financial market consisting of a risk-free asset and a risky stock. The dynamics of the risky stock is governed by a constant elasticity of variance model to incorporate conditional heteroscedasticity as well as the feedback effect of an asset’s price on its volatility. The objective of the insurer is to choose an optimal time-consistent reinsurance-investment strategy so as to maximize the expected terminal surplus while minimizing the variance of the terminal surplus. We investigate the problem using the Hamilton-Jacobi-Bellman dynamic programming approach. Closed-form solutions for the optimal reinsurance-investment strategies and the corresponding value functions are obtained in both the compound Poisson risk model and its diffusion approximation. Numerical examples are also provided to illustrate how the optimal reinsurance-investment strategy changes when some model parameters vary.     

Where Credit Is Due: Residential Mortgage Finance in Canada, 1901 to 1954

The experience of Canada in the first half of this century indicates that the importance of institutional mortgage lending for the growth of homeownership can be overstated. Home ownership rates in Canada and the United States were similar, but many fewer Canadians than Americans relied on lending institutions. Fewer incurred debt of any sort. A case study of Hamilton, Ontario, based on land titles records indicates that this was especially true during the interwar years. No Canadians lived in large metropolitan areas, where mortgage debt was most prevalent, while many built in stages as their finances allowed. Moreover, even in the early 1950s, half of all residential mortgage debt in Canada was held by private individuals, with brokers playing an important role. Despite the importance of the personal sector, above all in the markets for older homes and junior mortgages, the Canadian government made no effort to improve the way in which it operated.