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81.
Federico Perali 《International Review of Economics》2007,54(2):248-260
This paper clarifies the conditions under which PIGLOG and extended PIGLOG preferences can identify household equivalence
scales. The results are of interest to practitioners who have to elect preferences suitable for welfare analysis. It also
shows that independent of the base utility equivalence scales are the same whether the budget shares of the demand systems
are linear or quadratic in log income. (JEL: D11, D13)
The author is grateful to an anonymous referee for several helpful suggestions. 相似文献
82.
This article investigates the dynamic relation between market-widetrading activity and returns in 46 markets. Many stock marketsexhibit a strong positive relation between turnover and pastreturns. These findings stand up in the face of various controlsfor volatility, alternative definitions of turnover, differingsample periods, and are present at both the weekly and dailyfrequency. The relation is more statistically and economicallysignificant in countries with high levels of corruption, withshort-sale restrictions, and in which market volatility is high. 相似文献
83.
84.
Federico Cosenz Vinicius Picano Rodrigues Francesco Rosati 《Business Strategy and the Environment》2020,29(2):651-664
In the last decade, business models for sustainability have gained increasing attraction by corporate sustainability scholars with international conferences and scientific journals encouraging the development of the debate on their design, use and innovation processes. Capitalizing on the basic principles, requirements, and methodological limitations found in the literature on sustainability‐oriented business model design, this paper aims to conceptualize a dynamic business modeling for sustainability approach, which combines an adapted sustainable business model canvas and system dynamics modeling. To this end, the paper also illustrates the key operating principles of the proposed approach through an exemplary application to Patagonia's business model. Findings suggest that dynamic business modeling for sustainability may contribute to sustainable business model research and practice by introducing a systemic design tool, which frames environmental, social, and economic drivers of value generation into a dynamic business model causal feedback structure, thus overcoming methodological gaps of the extant business model design tools. 相似文献
85.
86.
We study a problem of optimal investment/consumption over an infinite horizon in a market with two possibly correlated assets: one liquid and one illiquid. The liquid asset is observed and can be traded continuously, while the illiquid one can be traded only at discrete random times, corresponding to the jumps of a Poisson process with intensity λ, is observed at the trading dates, and is partially observed between two different trading dates. The problem is a nonstandard mixed discrete/continuous optimal control problem, which we solve by a dynamic programming approach. When the utility has a general form, we prove that the value function is the unique viscosity solution of the associated Hamilton–Jacobi–Bellman equation and characterize the optimal allocation in the illiquid asset. In the case of power utility, we establish the regularity of the value function needed to prove the verification theorem, providing the complete theoretical solution of the problem. This enables us to perform numerical simulations, so as to analyze the impact of time illiquidity and how this impact is affected by the degree of observation. 相似文献
87.
We show that the composition of international trade has important implications for the optimal volatility of the exchange rate, above and beyond the size of trade flows. Using an analytically tractable small open economy model, we characterize the impact of the trade composition on the policy trade-off and on the role played by the exchange rate in correcting for price misalignments. Contrary to models where openness can be summarized by the degree of home bias, we find that openness can be a poor proxy of the welfare impact of alternative monetary policies. Using input–output data for 25 countries we document substantial differences in the import and non-tradable content of final demand components, and in the role played by imported inputs in domestic production. The estimates are used in a richer small-open-economy DSGE model to quantify the loss from an exchange rate peg relative to the Ramsey policy conditional on the composition of imports. We find that the main determinant of the losses is the share of non-traded goods in final demand. 相似文献
88.
89.
Our empirical analysis studies the impact of computer use on out of employment transitions of older workers, disentangling the effect of using a Personal Computer (PC) at work from that of being PC literate. Data are drawn from the 2000, 2002 and 2004 waves of the Bank of Italy Survey on Household Income and Wealth. We provide empirical evidence that, even controlling for a wide set of covariates, older employees who use a PC at work have a higher probability of remaining employed in the future. However, our results also indicate that, once PC literacy is controlled for, the use of a PC at work decreases only marginally the risk of becoming not employed (i.e. the effect is smaller than the one registered when we do not control for PC literacy). 相似文献
90.
The study authors investigate consumer reactivity to social and health concerns, social farm food’s perceived quality, and whether these attitudes can be expected to influence their behavioral intention with regard to these products. Data were collect on a convenience sample (N?=?361) via a questionnaire. Five hypotheses, concerning the relationships between social consciousness, health consciousness, social farm food perceived quality, and consumer behavioral intention, were tested via a structural equation model. The results indicate that both social consciousness and health consciousness have a positive impact on social farm food perceived quality. Consumer behavioral intention is directly influenced only by health consciousness but indirectly by both social and health consciousness, via the attribute of social farm food perceived quality. The findings depict a particular reactivity of potential consumers. The study provides a general outline of questions or studies that might be useful in the future. 相似文献