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1.
The aim of the present study is to examine the role of ethical dimensions and product personality in the purchasing intention of organic food products. The Prospect method (Caprara et al. in Test Psicomet Metodol 7(3–4):113–128, 2000), which integrates the Five factors model of personality (cf. Digman in Annu Rev Psychol 41(1):417–440, 1990) and the Theory of planned behavior (Ajzen in Organ Behav Hum Decis Process, 50(2):179–211, 1991) extended to an ethical dimension, was employed, by using a Structural Equation Modeling approach. Results showed that moral norms—i.e., personal beliefs regarding what is right or wrong (Parker et al. in Br J Soc Psychol, 34(2):127–137, 1995)—can be considered the main motivator of purchasing intention, and they are, in turn, affected by subjective norms and product personality traits of Naturalness and Authenticity. Marketing implications for firms operating in the organic food industry are discussed, in their intent to shift from a “niche” market to a broader diffusion of these products.  相似文献   

2.
This paper integrates economic and physical models to assess: a) how increases in agricultural commodity prices, driven by ethanol production and other factors, affect land use and cropping systems in the US Midwest, and b) how the changes in land use and cropping systems in turn affect environmental quality in the region. The empirical framework includes a set of econometric models that predict land conversion, crop choices, and crop rotations at the parcel level based on commodity prices, land quality, climate conditions, and other physical characteristics at the sites. The predictions are then combined with site-specific environmental production functions to determine the effect of rising commodity prices on nitrate runoff and leaching, soil water and wind erosion, and carbon sequestration. Results suggest that increasing commodity prices will result in widespread conversions of non-cropland to cropland. Fifty percent of the region’s pasture and range land will be converted to cropland with 6 corn. Rising commodity prices will also result in dramatic changes in crop mix and rotation systems in the Midwest. With6 corn. Rising commodity prices will also result in dramatic changes in crop mix and rotation systems in the Midwest. With 6 corn, the total acreage of corn will increase by 23% and 40% in the Corn Belt and Lake States, respectively; the acreage of continuous corn will increase considerably in both regions as well. These changes in land use and crop mix will have a large impact on agricultural pollution. Approaches to mitigating the environmental impacts are discussed.  相似文献   

3.
The Sultan Marshes in the Develi Basin, Anatolia, one of twelve internationally important wetlands of Turkey, have been severely affected by the construction of an irrigation project in 1988. Intensive use of surface and ground water in irrigation has caused more than a 1 m decline in water levels and has affected the wetlands' ecological characteristics. Previous studies indicate that Sultan Marshes will need more water to restore viable ecological conditions. In this study, we analyze how economic benefits from agriculture and wetlands would be affected if moderate amounts of water were diverted from agriculture back to wetlands in the Develi Basin. By estimating total and marginal costs and benefits associated with water diversions, we determined the optimum or economically-efficient amount of water diversion. When only direct-use values of the wetland (animal grazing, plant harvesting, and ecotourism) were included in the analysis, the optimum amount of water diversion to the wetlands was found to be 5.2 million m3 year− 1 (165 L sec− 1), which compares to about 62 million m3 year− 1 (1,957 L sec− 1) used in irrigation. When wastewater treatment benefits (an indirect-use value) were added, the optimum amount rose to 7 million m3 year− 1. Overall, the analysis showed that water diversion from agriculture to the Sultan Marshes is economically preferable.  相似文献   

4.
Time series are often subject to the influence of non-repetitive events. Economic variables make here no exception. For example, the announcement and implementation of new regulations, major changes in economic policy or in the tax legislation, and similar events may cause substantial disturbances in economic time series. The presence of outliers may lead to wrongly identified models and inappropriately estimated model parameters giving rise to poor forecasts and erroneous conclusions. In the past, these problems had mostly to be ignored, because simple yet efficient techniques for the treatment of outliers did not exist. The situation improved slightly whenBox-Tiao (1975) proposed intervention analysis. However, the fact that a detailed knowledge of the structure of the series to be analysed is required for a successful application of this technique, is a severe restriction for its use in practical work. But, in the meantime, there exist already techniques which solve the outlier problem more or less automatically. For a detailed discussion of these techniques and their computer implementation seeChen-Liu-Hudak (1990). It is the aim of this paper to gain information on the reliability of these methods in practical situations. For this purpose, we apply them in the analysis of three Austrian economic time series, namely retail sales, purchases of durables, and car purchases. We believe that these series are well suited for our objective. They are strongly contaminated by outliers and, additionally, there already exist sophisticated intervention models which can serve as benchmarks in the comparison.
Zusammenfassung Realisationen von Zeitreihen werden von Sonderfaktoren oft stark beeinflußt. Beobachtungen von ökonomischen Größen sind davon nicht ausgenommen. Die Ankündigung und das Inkraftsetzen neuer Verordnungen, größere Änderungen in der Wirtschaftspolitik oder der Steuergesetzgebung und ähnliche, Ereignisse können Anlaß für beträchtliche Verzerrungen in ökonomischen Zeitreihen sein. Das Auftreten solcher Ausreißer führt zu falsch identifizierten Modellen und schlecht geschätzten Modellparametern, was sich letztlich in ungenauen Prognosen und falschen Empfehlungen für die Wirtschaftspolitik niederschlägt. Bisher wurde die Existenz einer Ausreißerproblematik bestenfalls in einer Fußnote angemerkt, ansonsten aber ignoriert, weil das notwendige Instrumentarium für eine erfolgversprechende Behandlung des Problems fehlte. In der Zwischenzeit wurden Verfahren für die Ausschaltung von Ausreißern entwickelt, die in der vorliegenden Arbeit auf ihre praktische Brauchbarkeit getestet werden. Wir wenden diese Verfahren auf drei ökonomische Zeitreihen, nämlich Einzelhandelsumsätze, Kauf von dauerhaften Konsumgütern und Autokäufe an. Diese Zeitreihen werden deshalb gewählt, weil sie eine Anzahl von Ausreißern aufweisen, deren Ursache, Datierung und Größenordnung bekannt ist. Es läßt sich somit überprüfen, ob die getesteten Verfahren in der Lage sind, diese Ausreißer aufzuspüren und zu eliminieren.
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5.
Decomposition of energy-related CO2 emission over 1991-2006 in China   总被引:8,自引:0,他引:8  
This paper presents a decomposition analysis of energy-related CO2 emission in China for the period 1991-2006 divided into three equal time intervals. The complete decomposition method developed by Sun is used to analyze the nature of the four factors: CO2 intensity, energy intensity, structural changes and economic activity. The results show that economic activity has the largest positive effect in CO2 emission changes in all the major economic sectors and China has achieved a considerable decrease in CO2 emission mainly due to the improved energy intensity. However, the impact of CO2 intensity and structural changes is relatively small. Structural changes only exhibit positive effect to the CO2 mitigation in agricultural sector, and CO2 intensity also contributes to the decrease of CO2 emission in transportation sector. Moreover, a formula about CO2 mitigation is presented in this paper, which shows that China has made a significant contribution to reducing global CO2 emission.  相似文献   

6.
The impact of immigration on the change in the unemployment rate in the Netherlands is analyzed using panel data from 26 labor market regions from 1996 through 2003. This study measures immigration through the year-to-year change in the foreign population, paying particular attention to immigrants of non-Western origin. Other variables controlling the composition of the local labor market include: occupation shares, the fractions of workers employed in high- and low-skilled jobs, the fractions of female workers, part-time employees, labor force participants over the age of 55, educational attainment shares, and population density. The ordinary least squares (OLS) results indicate a change in the foreign population in the labor force led to a statistically significant increase in the upward volatility of Dutch unemployment rates while the change in the non-Western share had no significant effect.
James J. Jozefowicz (Corresponding author)Email:
  相似文献   

7.
A necessary criterion for a performance measure in corporate governance is the degree to which it mirrors how well the management succeeds in maximizing firm value. Such a performance measure is marginal q which links changes in firm value to the investments undertaken by the management. Empirical studies of investment and performance based on marginal q have demonstrated the usefulness of this measure. Most research however, has mainly focused on long-term performance. This paper takes a short-term perspective and, based on the marginal q-theory, considers how firms’ market values change in the extreme stock price cycle of a stock market bubble. Using a data set of listed Swedish corporations we find an anomaly in form of a new industry specific effect that, in addition to investment, explains changes in firm value.
Per-Olof BjuggrenEmail:
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8.
This paper examines three approaches to the process of accumulationwhich are based on the ‘Keynesian premise’: the‘neo-Keynesian’, the ‘Kaleckian’ andthe ‘Sraffian’. Making some criticisms of the firsttwo from the viewpoint of the third and from a certain formal/conceptualperspective, we propose a synthetic model which is free fromthese criticisms and in which the adjustment of savings to investmentin the long period is achieved through all the three routesemphasised separately by these approaches: changes in the long-perioddegree of utilisation; changes in the ‘normal’ distributionof income; and variations in the size of productive capacity.The key to the synthesis is the hypothesis that, in the longperiod, the ‘normal’ degree of utilisation is endogenouslydetermined to coincide with the average level through mutualinfluence effected by investment in the short period. Our syntheticmodel, like the first two approaches, is in the line of steady-stateanalysis, but in a way compatible with the ‘Keynesianpremise’.  相似文献   

9.
Post-Keynesian Institutionalism (PKI), a synthesis of post Keynesian and institutional economics, emerged in the USA as a strand of evolutionary economics in the early 1980s and has attracted increasing attention in recent years. This article examines milestones in the development of PKI, devoting particular attention to the tradition’s conception of the role of the state. The first section identifies antecedents to PKI in the writings of John R. Commons and John Maynard Keynes. The second describes how PKI emerged against the backdrop of increasing dissatisfaction with neoclassical Keynesianism in the era of stagflation. The third summarizes the subsequent contributions of Hyman P. Minsky, whose work was a model of PKI in the 1980s and 1990s. The final two sections outline PKI’s contemporary characteristics and identify elements of an agenda for future research. PKI has always been about achieving a more humane form of capitalism, which requires the state to play a creative role in shaping economic life.
Charles J. WhalenEmail:

Charles J. Whalen   is professor of economics and director of the department of business and economics at Utica College. He is also a visiting fellow in the School of Industrial and Labor Relations at Cornell University and editor of Perspectives on Work, published by the Labor and Employment Relations Association. His research interests include the history of economic thought, US economic history, macroeconomics, and industrial relations. He is editor of Political Economy for the 21st Century: Contemporary Views on the Trend of Economics (M.E. Sharpe, 1996), New Directions in the Study of Work and Employment: Revitalizing Industrial Relations as an Academic Enterprise (Edward Elgar, 2008), and guest editor of the Forum for Social Economics special issue on “The State, Public Policy and Heterodox Economics.”  相似文献   

10.
Abstract

Background:

To evaluate the cost burden of patients with advanced Parkinson’s disease (PD) according to the waking hours per day spent in OFF state. An analysis of resource use comprising medical services, professional care and informal care data from an observational, cross-sectional study was conducted.

Methods:

A total of 60 physicians comprising 40 neurologists and 20 geriatricians across the UK participating in the Adelphi PD Disease Specific Programme took part. There were 302 PD patients at H&Y stages 3–5. Patients were characterised according to the percentage of time per day spent in OFF state (<25%, 26–50%, 51–75%, >75%).

Results:

Average 12-monthly total costs increased according to the time spent in OFF state from £25,630 in patients spending less than 25% of their waking hours in OFF to £62,147 for patients spending more than 75% of their time in OFF. Overall, 7% of costs were attributed to direct medical care, while 93% were split between direct non-medical professional care (50%) and indirect informal care (43%).

Limitations:

Low patient numbers in the more advanced disease stages of PD led to very little or no data to directly inform some of the severe health states of the analysis. Data gaps were filled in with data derived from a regression analysis which may affect the robustness of the analysis.

Conclusion:

This study illustrates the increasing costs of advancing PD, in particular related to the time spent in OFF state, and identifies that the foremost cost burden is associated with the care needs of the patient rather than medical services.  相似文献   

11.
Thiess Buettner 《Empirica》2007,34(4):287-297
This paper provides empirical evidence on regional labor market flexibility in Europe and, in particular, in the EU-accession countries in Central and Eastern Europe. Whereas substantial regional disparities in unemployment are found for pre-accession EU member countries as well as for accession countries, an empirical analysis taking account of spatial effects shows that regional wage flexibility is significantly higher for accession countries. Moreover, unemployment disparities are found to be less persistent in the accession countries.
Thiess BuettnerEmail:
  相似文献   

12.
Theory predicts that workers in cities are more likely to engage in job search, ceteris paribus, due to market efficiencies associated with greater job density. However, if job search is more efficient in urban markets, then the quality of a given job match should also tend to be higher in cities, ceteris paribus. Employed workers living in cities might then be expected to search less than their nonurban counterparts. In this latter instance, it is not city residency itself that makes search less likely, but rather the positive correlation between city residency and job match quality. Using data from the National Longitudinal Survey of Youth 1979, this prediction is confirmed: The estimated coefficient on an indicator of urban residency is found to be near zero and statistically insignificant in models of employed search that omit proxies for job match quality. When job match proxies are included in the models, the estimated coefficient on urban residency becomes positive and highly significant. This result suggests that workers are not only more likely to engage in employed search in urban labor markets, but also tend to find more productive job matches in cities over time.
Jeffrey J. YankowEmail:
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13.
This study examines to what extent changes in consumer demand patterns over the last two decades in the Netherlands can be attributed to changes in household demographics, employment and total expenditures. The dominating changes in consumer demand are decreasing budget shares of food & beverages and clothing & footwear and increasing budget shares of housing and services. The changes in households’ composition – away from the traditional one-earner family with children – together with the increase in household total expenditures account for about one-third of the decrease in the budget share of food & beverages, half of the increase in the budget shares of services and only a minor part of the increase in housing. Once controlled for budget effects, the quadrupling of the proportion of employed women with young children accounts for about one-third of the increase in the budget shares of personal & health care – including childcare – and food away, holidays & entertainment.  相似文献   

14.
The income velocity of money in China has been declining since the country’s reform. By studying the money demand behavior in the agricultural and non-agricultural sectors, we found that the marginal propensity to money demand is much higher in the non-agricultural sector. This implies that as the share of the agricultural sector in national income declines, monetary expansion is expected to meet not only the needs of income growth, but also the rapid structural shifts in the sectoral composition of income. Hence, non-inflationary monetary expansion is possible as development proceeds. This provides a new perspective in understanding the decline in the income-velocity of money in China. __________ Translated from Social Sciences in China (中国社会科学), 2005,(4) (in Chinese)  相似文献   

15.
In the first part of the paper, we try to clearly identify financial innovations and draw a general framework. Despite the relevance of financial innovations, a unique definition is difficult to find. We then provide empirical evidence of such innovations on a sample of Italian and UK listed banks over the period 2005–2007 using financial account data. First, the absence of any mention of a specific organizational unit in charge of research and development (R&D) is highlighted. However, the existence of a research and developmental function involving different organizational units cannot be excluded. Second, innovation seems to be mainly concentrated in the product area, both in Italy and in the UK. This could be accounted for by the difference in the “life cycles” of innovations and by the different operational conditions of banks in both systems. Third, larger banks seem more innovative, both in Italy and in the UK. No clear relation between innovation and cost reduction/revenue increase seems to exist, at least in Italy. In the light of the above considerations, policy implication comes to light on whether the choice of not establishing a specific organizational unit dedicated to R&D could turn out effective in the medium-long term.
Francesca ArnaboldiEmail:
  相似文献   

16.
This paper describes and analyses changes at the concentration level of the audit services markets in 15-EU member-countries. The sample consists of 2,862 clients of auditing firms for the period 1998 to 2004. The findings of the research show that concentration in the aggregate sample increased over time. Concentration in the audit markets of the EU-15 member-countries exhibits substantial variation across countries while average concentration, before and after Arthur Andersen’s dissolution, has increased in 12 and declined in three countries. Results segmented by economic sectors indicate that the concentration increased in all sectors except Energy, which is the sector with the highest concentration. Overall, the empirical results suggest that there are complexities in our understanding of auditing services markets for competition purposes.
Irene Fafaliou (Corresponding author)Email:
  相似文献   

17.
Sequential vs. single-round uniform-price auctions   总被引:1,自引:0,他引:1  
We study sequential and single-round uniform-price auctions with affiliated values. We derive symmetric equilibrium for the auction in which k1 objects are sold in the first round and k2 in the second round, with and without revelation of the first-round winning bids. We demonstrate that auctioning objects in sequence generates a lowballing effect that reduces the first-round price. Total revenue is greater in a single-round, uniform auction for k=k1+k2 objects than in a sequential uniform auction with no bid announcement. When the first-round winning bids are announced, we also identify a positive informational effect on the second-round price. Total expected revenue in a sequential uniform auction with winning-bids announcement may be greater or smaller than in a single-round uniform auction, depending on the model's parameters.  相似文献   

18.
Firms undertake different kinds of R&D activities. They do product R&D (R&D aimed at improving the quality of existing products, and creating new products). They also do process R&D (R&D aimed at lowering the cost of making existing and new products). Moreover, firms often do both product and process R&D simultaneously. As far as the objective of firms is concerned, this need not be limited to profit-maximization only. Rather, firms may have a broader objective, where they care about profits as well as consumer surplus. This paper studies effects of a firm having a general objective function (that takes into consideration both profits and consumer surplus) on its product and process R&D choices, and corresponding implications.I consider product and process R&D choices of firms in an infinite horizon set-up with discrete time. Firms in my framework can simultaneously do both product and process R&D in every period, face a discrete-choice model of consumer demand with vertical product differentiation, and maximize a discounted, weighted sum of their profits and consumer surplus over the infinite time horizon.I show how process and product R&D differ from each other in my framework, and the role of a firm's objective function in this regard. I compare process and product R&D choices across firms that differ in their objective function, and illustrate effects of providing general R&D subsidies (subsidies given for any R&D, regardless of whether it is product or process R&D) to firms. I also characterize how in my framework, the choice of process R&D in total R&D — R&D composition — by an individual firm varies over time, and how process and product R&D choices, process and product R&D productivity, and the choice of R&D composition vary across firms that differ in size but are otherwise similar.  相似文献   

19.
This paper gives a centenary appreciation of the contributions to economic thought of Joseph A. Schumpeter, with special focus on his work, The Theory of Economic Development (TED) it proceeds, first, by providing (in section 1) an overview of Schumpeter's life and works; second, by giving an interpretative exposition of the main themes of TED (in section 2) and Schumpeter's broader ‘economic sociology’ (in section 3) in terms of the place of these ideas in the history of economic thought; third, by examining the reception to TED and the impact of it and Schumpeter's dynamic methodology on the discipline (in section 4).  相似文献   

20.
We study the dynamics of inflation persistence in 45 countries for the period 1960–2008 using a recently developed test for multiple changes in persistence, which decomposes the sample information between adjacent I (0) and I (1) periods. We find that: (i) inflation persistence and average inflation tend to fall and rise at the same time; (ii) in some countries there are changes in the level of inflation which do not seem to be related to changes in inflation persistence; (iii) around half of the countries analyzed do not present any burst of I (1) behavior, and hence have stationary inflation throughout; (iv) for the other half, we detect switches of the type I (0) ? I (1) ? I (0), hence, inflation persistence, when it has occurred, has been temporal; and, (v) for about half of the countries in which inflation has presented I (1) behavior, persistent inflation lasted more than a decade. In addition, we find that in the last 50 years there have been mainly two episodes where long bursts of I (1) inflation took place simultaneously among groups of countries. In general, the “Great Inflation” occurred during the seventies and eighties in advanced economies, whereas it occurred during the eighties and nineties in emerging economies, particularly in Latin America.  相似文献   

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