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81.
The economic literature has attributed part of the increase in government expenditure over the 20th century to female voting. This is puzzling, considering that the political science literature has documented that women tended to be more conservative than men over the first half of the 20th century. We argue that the current estimates of this relationship are afflicted by endogeneity bias. Using data for 46 countries and a novel set of instruments related to the diffusion of female suffrage across the globe, we find that, on average, the introduction of female suffrage did not increase either social expenditures or total government expenditure. 相似文献
82.
Maarten Holtslag Nicolas Chevrollier Andre Nijhof 《Business ethics (Oxford, England)》2021,30(4):522-537
Impact investors often know their financial return on investments, but are less certain about their impact. This article frames impact as their contribution to sustainable market transformation. A sustainable market transformation consists of inception, first movers, critical mass, and institutionalization phases. Given the nature of such transformations, the impact is effectuated at different moments and toward various market actors. Based on an exploratory research design with semi-structured expert interviews, this article aims to create an overview of the roles of impact venture capital funds in sustainable market transformations. The results suggest that the view that the capitalization of start-ups is the only impact of impact investors is a misconception. The needs of companies with sustainability value propositions change over time and consequently impact investors perform various roles. For example, exiting an investment while upholding social and environmental objectives communicates to mainstream business that the start-up is ready to create a greater impact. Further, impact investors fulfill external roles that change the perspectives of institutional actors toward sustainable investments. Based on an overview of the different roles that impact investors fill, this article proposes a future research agenda to strengthen our knowledge about the impact return of investments. 相似文献
83.
We develop a theory of optimal collusive intertemporal price dispersion. Dispersion clouds consumer price awareness, encouraging firms to coordinate on dispersed prices. Our theory generates a collusive rationale for price cycles and sales. Patient firms can support optimal collusion at the monopoly price. For less patient firms, monopoly prices must be punctuated with fleeting sales. The most robust structure involves price cycles that resemble Edgeworth cycles. Low consumer attentiveness enhances the effectiveness of price dispersion by reducing the payoff to deviations involving price reductions. However, for sufficiently low attentiveness, price rises are also a concern. 相似文献
84.
Error Calculus and Path Sensitivity in Financial Models 总被引:1,自引:0,他引:1
In the framework of risk management, for the study of the sensitivity of pricing and hedging in stochastic financial models to changes of parameters and to perturbations of the stock prices, we propose an error calculus that is an extension of the Malliavin calculus based on Dirichlet forms. Although useful also in physics, this error calculus is well adapted to stochastic analysis and seems to be the best practicable in finance. This tool is explained here intuitively and with some simple examples. 相似文献
85.
86.
Nicolas V. Danila 《Technology Analysis & Strategic Management》1989,1(3):273-284
The life cycle of technology projects comprises 10 phases: identification, conception, formulation, feasibility, evaluation, decision, realization, control, termination and post-evaluation. One of the most important phases is formulation, foar which an interdisciplinary tool, the 'support graph', was conceived and used for more than 200 high technology projects in such areas as chemicals, biotechnology, electronics, software (artificial intelligence), telecommuniocation, energy and aerospace. This paper descrones how to build an effective support graph. The general objective, the partial objectives, the tasks and the means are the principal components. The management of change during the implementation of high technology projects is largely facilitated by the use of the support graph. It also creates a common language between the technologists and the managers and gives information on when to alter the goals of a high technology project. Support graphs for an expert system and for a telecommunication project are used to illustrate the proposed approach. 相似文献
87.
In designing a derivative contract, an exchange carefully considers how its attributes affect the expected profits of its members. On November 3, 1997, the Chicago Mercantile Exchange doubled its tick size of its S&P 500 futures contract and halved the denomination, providing a rare opportunity to examine empirically the search for an optimal contract design. This article measures changes in the trading environment that occurred in the days surrounding the contract redesign. We find a discernible change in the incidence of price clustering, an increase in the bid/ask spread, a reduction in trading volume, and no meaningful change in dollar trade size. These results suggest that the contract redesign did not increase accessibility but did increase market maker revenue. Despite the increase, however, the bid/ask spread of the S&P 500 futures contract remains low relative to the costs of market making and the spreads in markets for competing instruments. © 2003 Wiley Periodicals, Inc. Jrl Fut Mark 23:719–750, 2003 相似文献
88.
Rongju Zhang Nicolas Langrené Yu Tian Zili Zhu Fima Klebaner Kais Hamza 《Quantitative Finance》2019,19(3):519-532
We present a simulation-and-regression method for solving dynamic portfolio optimization problems in the presence of general transaction costs, liquidity costs and market impact. This method extends the classical least squares Monte Carlo algorithm to incorporate switching costs, corresponding to transaction costs and transient liquidity costs, as well as multiple endogenous state variables, namely the portfolio value and the asset prices subject to permanent market impact. To handle endogenous state variables, we adapt a control randomization approach to portfolio optimization problems and further improve the numerical accuracy of this technique for the case of discrete controls. We validate our modified numerical method by solving a realistic cash-and-stock portfolio with a power-law liquidity model. We identify the certainty equivalent losses associated with ignoring liquidity effects, and illustrate how our dynamic optimization method protects the investor's capital under illiquid market conditions. Lastly, we analyze, under different liquidity conditions, the sensitivities of certainty equivalent returns and optimal allocations with respect to trading volume, stock price volatility, initial investment amount, risk aversion level and investment horizon. 相似文献
89.
We develop a model with multi‐product retailers acting as intermediaries between manufacturers and consumers. We show that the rise in retailer product assortment, the rise of up‐front payments in many retail markets and the observed shift in employment from manufacturing to retailing may be the consequence of the global integration of product markets. We also identify a novel benefit from market integration consisting of efficiency gains in the vertical distribution chain. 相似文献
90.
Recent research has shown that exposure to songs with prosocial lyrics was associated with prosocial behavior and accessibility of prosocial thoughts. However theses studies were performed in a laboratory setting where participants were instructed to listening songs alone in a room. So the effect of prosocial songs in a natural setting, with several people in a room and with various ambient noises still remained in question. An experiment was carried out in a restaurant in order to test if listening or not, prosocial songs by patrons, was associated with variation in their tipping behavior. Results showed that prosocial songs were associated with a significant increase in tipping behavior. 相似文献