Optimal scale in the Italian gas distribution industry using data envelopment analysis

The Italian gas distribution industry presents a high degree of fragmentation. However, the tendency between 1970 and 1998 was a concentration process. Available evidence supports the thesis that local distributors have undertaken a process of scale enlargement. This raises the question of characteristics of returns to scale for such operators as well as the optimal scale at which they should operate. Returns to scale are analysed by data envelopment analysis (DEA) methodology. The results show that the output space in which DMUs attain a high level of scale efficiency is widespread, thus indicating an unexpected return to scale characterisation. Technology shows increasing returns only for the smallest units, but such an effect is rapidly exhausted in favour of a regime of constant returns to scale. The main managerial conclusion is that an improvement of productivity may be reached via an intensification of the merging process involving local distributors operating at a small scale. Moreover, the concentration process appears as an “attainable” objective since the critical dimension, which permits the exploitation of positive returns to scale, is quite small.     

Using Malmquist Indexes to measure changes in the productivity and efficiency of US accounting firms before and after the Sarbanes–Oxley Act

There have been many criticisms of the Sarbanes–Oxley (SOX) Act passed in July of 2002 to correct business accountability and performance practices. The act has a major emphasis on accounting and its practices. This paper attempts a response to these criticisms by investigating changes in productive efficiency for 62 of the largest US public accounting firms between the periods (2000–2001) and (2003–2004)—the periods before and after enactment of SOX in July of 2002. DEA is used to calculate Malmquist indexes of productivity and efficiency changes. This index is used because it can distinguish between changes in technical efficiency, which limit the possibilities, and changes in the performance efficiencies for each firm. Contrary to many of the criticisms, results indicate that accounting firms have exhibited significant post SOX growth in productive efficiency which is better than pre-SOX performances.     

Statistical precision of DEA and Malmquist indices: A bootstrap application to Norwegian grain producers

Previous applications of data envelopment analysis (DEA) and its subsequent Malmquist indices to efficiency and productivity measurements have been criticised for not providing statistical inferences regarding the significance of observed results. In this paper, DEA and a Malmquist index are combined with a bootstrap method in order to provide succinct statistical inferences that determine the performance of grain producers in Eastern Norway. The data cover the period between 1987 and 1997. Results reveal: (i) a significant degree of inefficiency (approximately 11%) and an average productivity progress of 38% over the period considered; (ii) the formidable productivity progress observed is primarily explained by technical efficiency changes that enabled producers to catch up with front runners; and (iii) environmental factors, such as weather conditions, impact both efficiency and productivity. Finally, the analysis reveals that using bootstrapping to make statistical inferences suggests that researchers should be careful in making performance comparisons based on conventional DEA methods, as any discovered differences may not be significant.     

THE BASIC PUBLIC FINANCE OF PUBLIC–PRIVATE PARTNERSHIPS

Public–private partnerships (PPPs) have been justified because they release public funds or save on distortionary taxes. However, the resources saved by a government that does not finance the upfront investment are offset by giving up future revenue flows to the concessionaire. If a PPP can be justified on efficiency grounds, the PPP contract that optimally balances demand risk, user‐fee distortions, and the opportunity cost of public funds has a minimum revenue guarantee and a revenue cap. The optimal contract can be implemented via a competitive auction with reasonable informational requirements. The optimal revenue guarantees, revenue sharing agreements, and auction mechanisms are different from those observed in the real world. In particular, the optimal contract duration is shorter in demand states where the revenue cap binds. These results also have implications for budgetary accounting of PPPs, as they show that their fiscal impact resembles that of public provision, rather than privatization.     

SALES AND COLLUSION IN A MARKET WITH STORAGE

Sales are a widespread and well‐known phenomenon documented in several product markets. This paper presents a novel rationale for sales that does not rely on consumer heterogeneity, or on any form of randomness to explain such periodic price fluctuations. The analysis is carried out in the context of a simple repeated price competition model, and establishes that firms must periodically reduce prices in order to sustain collusion when goods are storable and the market is large. The largest equilibrium profits are characterized at any market size. A trade‐off between the size of the industry and its profits arises. Sales foster collusion, by magnifying the inter‐temporal links in consumers' decisions.     

RELATIVE FACTOR ENDOWMENTS AND INTERNATIONAL PORTFOLIO CHOICE

We present a model of international portfolio choice based on cross‐country differences in relative factor abundance. Countries have varying degrees of similarity in their factor endowment ratios, and are subject to aggregate productivity shocks. Risk‐averse consumers can insure against these shocks by investing their wealth at home and abroad. In a many‐good setup, the change in factor prices after a positive shock in a particular country provides insurance to countries that have dissimilar factor endowment ratios, but is bad news for countries with similar factor endowment ratios, since their incomes will worsen. Therefore countries with similar relative factor endowments have a stronger incentive to invest in one another for insurance purposes than countries with dissimilar endowments. The importance of this effect depends on the size of countries. Empirical evidence linking bilateral international equity investment positions to a proxy for relative factor endowments supports our theory: the similarity of host and source countries in their relative capital–labor ratios has a positive effect on the source country’s investment position in the host country. The effect of similarity is enhanced by the size of host countries.     

Economic reforms, corporate governance and privatization method as determinants in performance changes of new privatized firms: the case of MENA countries

This paper aims to provide the determinants of how privatization works in some selected Middle East North Africa countries. Using a sample of 75 new privatized firms we examine the performance changes in countries namely Egypt, Morocco, Tunisia and Turkey. We document a significant increase in profitability, efficiency and output as well as a decrease in leverage. We also identify that these improvements vary with economic reforms and environment, effectiveness of corporate governance and the privatization method used. In particular, financial liberalization and control relinquishment by the government are associated with higher efficiency and output. Furthermore, foreign participation and the use of share issue privatization as divestment method appear to have a positive impact on efficiency and output changes. Additionally, the use of private sales is related to a significant decrease in leverage. Finally our results highlight the importance of economic reforms, corporate governance and the choice of privatization method in explaining the post privatization changes in performance.     

FINANCIAL DEVELOPMENT AND VERTICAL INTEGRATION: THEORY AND EVIDENCE

Existing evidence is mostly inconclusive on the relevance of financial development as a determinant of vertical integration. This paper presents evidence that, once industry heterogeneity in firm size distribution is taken into account, financial development is an important determinant of cross‐country differences in vertical integration. Financial development fosters entry of firms and increases competition in the industry. This reduces vertical integration of larger firms, but also leads smaller, non‐integrated, firms to exit the industry. As a result, higher financial development reduces vertical integration in industries where a high share of output is produced by small firms. The positive effect of financial development on entry also reduces vertical integration by fostering the development of input markets.     

On the Measurement of Corporatism

ABSTRACT: It is noticed that in both theoretical and empirical analyses concerning the relationship between corporatism and economic performance, the role of government is kept rather implicit. This article aims to incorporate government into the analysis in a more explicit way by analyzing whether government policies differ between corporatist and non-corporatist countries. The empirical results of the research reveal that corporatist countries are not only characterized by centralization or coordination of wage bargaining, but also by relatively high government expenditure, tax revenues, a higher ratio of active to passive labour market policies and also higher average unemployment benefits.     

UNCERTAIN DEMAND,CONSUMER LOSS AVERSION,AND FLAT‐RATE TARIFFS

We consider a model of firm pricing and consumer choice, where consumers are loss averse and uncertain about their future demand. Possibly, consumers in our model prefer a flat rate to a measured tariff, even though this choice does not minimize their expected billing amount—a behavior in line with ample empirical evidence. We solve for the profit‐maximizing two‐part tariff, which is a flat rate if (a) marginal costs are not too high, (b) loss aversion is intense, and (c) there are strong variations in demand. Moreover, we analyze the optimal nonlinear tariff. This tariff has a large flat part when a flat rate is optimal among the class of two‐part tariffs.     

Challenges Facing Public Sector Management in an Era of Downsizing,Devolution, Dispersion and Empowerment—and Accountability?

Agencies at all levels of government are facing strong ideological pressures to downsize, devolve, dispense, and empower both employees and recipients of services. These ideological pressures provide many performance advantages, but collectively they threaten historic notions of achieving economy, efficiency, and effectiveness, along with accountability. It has been widely assumed in recent years that advancements in information technology and performance measurement provide adequate replacements for the historic notion that accountability flows up-the-hierarchy to elected officials and the sovereignty. These technologies, however, are not yet able to ensure responsible administration or accountability in many areas of domestic government services. Today's public managers can play leading roles in developing alternative approaches for achieving accountability if they are supported by forward-looking human resources management (HRM) agencies.     

Working women in the European community—The future prospect

EEC regulations direct that as well as equal pay for equal work, women should have equal access to employment. However, obvious distinctions between male and female employment still abound in European countries—though they vary from one country to another—and the difficulties in implementing the legislation are further compounded by the effects of the recession. Business and government will have to plan for the growing demand of women to work and the authors examine the major problems which have to be addressed.     

现金分红的连续性、投资效率与公司价值——基于面板结构VAR模型的实证分析

本文以1998-2009年间我国1383家上市公司为样本,分别按最终控制人的性质和派现行为是否连续对样本进行了划分,运用面板的结构VAR模型研究了现金股利、投资效率和公司价值之间的关系。基于模型的脉冲响应函数和方差分解,本文对连续派现的公司和非连续派现的公司进行了比较。研究发现：自然人控制的上市公司中,非连续派现公司的投资挤占了现金股利的积极效应,并给公司价值带来了负的冲击效应,连续派现公司的现金分红与投资存在相互促进的效应,公司价值对投资冲击的响应函数值为正;地方政府控制的上市公司整体上投资对现金分红冲击的响应函数值为负,其对公司价值的冲击效应也为负;中央政府控制的上市公司中,连续派现公司的现金分红具有抑制过度投资的效应,但其对投资波动的影响作用较小,若对非连续派现的公司实施以分红为条件的融资政策,则可能会制约其发展。     

Anti-Corruption Initiatives and E-Government: A Cross-National Study

This paper discusses various approaches of anti-corruption initiatives and conducts statistical analyses on aggregate data of more than 200 different countries to find relationships between e-government and anti-corruption in government. Findings indicate that e-government could be an effective tool to curb corruption in government in spite of the fact that the rule of law is the most powerful predictor of anti-corruption as well as a fundamental precondition of a clean government. Findings also indicate that if digital government is strengthened with high-quality public bureaucracies, anti-corruption efforts could more effectively lower the corruption levels of public affairs.     

效率与公平视角下企业及政府的资源配置决策

考虑企业及政府资源配置中效率与公平目标的不同内涵,采用"客户嫉妒"和"个体变权"刻画不同主体的决策行为,分别引入公平参数建立多目标决策模型,并提出基于客户和决策者偏好的公平参数选择方法,实现效率与公平的权衡。将模型转化为变分不等式,设计修正投影算法求解。通过算例进一步分析了不同主体的决策行为差异、公平参数的选择及影响。研究表明：企业与政府的效率最优决策相近,但公平最优决策差异明显;客户公平偏好越高,企业资源配置的分化特征反而越显著;政府决策者公平偏好越高,所有个体间资源配置趋于均等。     

PARTY CUES IN ELECTIONS UNDER MULTILEVEL GOVERNANCE: THEORY AND EVIDENCE FROM US STATES

In federal countries, voters’ ability to evaluate the performance of their leaders might be reduced when different levels of government shape policy outcomes. This can blur political accountability. In this article, we analyze how party cues (i.e., politicians’ party membership acting as a cue towards their characteristics) affect voters’ incomplete information in a federal setting. We theoretically show that party cues allow indirect inference regarding politicians using observed policy outcomes, and can alleviate the accountability problem. Empirical evidence from US presidential election results across all 50 US states over the period 1972–2008 supports this proposition. However, party cues also have a downside in that they may reduce politicians’ effort, particularly when politicians at different levels of government are from different parties.     

多目标条件下企业碳配额分配和政府公平——基于(p,α)比例公平的视角

本文在企业和政府主从博弈框架下,研究政府兼顾社会福利和减排成本的多目标条件下企业最优碳配额分配方式,并采用（p,α）比例公平建立了最优分配与政府公平态度之间的对应关系,进一步分析企业间减排效率差异对碳配额最优分配以及政府所持公平态度的影响。采用遗传算法模拟结果显示,在政府最大化社会福利和最小化减排总成本的多目标下,政府始终给予高效率减排企业更多的配额,在企业间减排效率差异较小和较大的行业,减排效率对最优配额分配和政府所持公平态度的影响是完全不同的。当行业内企业减排效率差异较小时,随减排效率差异的增加,低效率企业所得配额逐渐减少,政府公平性逐渐降低;当企业减排效率差异较大时,情况刚好相反,低效率企业的配额逐渐增加,政府变得越来越注重公平。除此之外,政府公平性并不意味着低效率企业得到更多的碳配额,当企业间减排效率差异增加到某一区间,随减排效率差异的增加,低效率企业所得配额逐渐减小,而政府公平逐渐增加。我们的结论为相关部门多目标下的最优碳配额分配决策以及分析政府的公平性提供了有益参考。     

QUALITY LADDERS IN A RICARDIAN MODEL OF TRADE WITH NONHOMOTHETIC PREFERENCES

The North–South trade literature has traditionally explored conditions under which international trade might further magnify income disparities between the advanced North and the backward South. We show that even when no single country is initially more advanced than any other one and productivity changes are uniform and identical in all countries, trade may still be a source of income divergence when nonhomothetic preferences and quality ladders are jointly taken into account. Income divergence will be experienced when comparative advantages induce patterns of specialization that, although initially optimal for all countries, do not offer the same scope for quality upgrading of final products.     

Women on boards and bank efficiency in ASEAN-5: the moderating role of the independent directors

Corporate governance codes around the world promote women’s presence in corporate board. The extant literature suggests women directors contribute to improve monitoring and advisory role of the board. This study aims to examine the role of independent women directors in improving banks’ efficiency. Using 102 commercial banks from ASEAN-5 countries for a period of 1999–2012, we run generalized method of moments models to test the relationship between the variables. Our results show that banks with independent women directors on board contribute significantly to the bank’s efficiency level. Contrary to the literature, we found that the appointment of women directors or independent directors alone does not significantly enhance banks’ efficiency. The result suggests that women directors are more effective on boards if they are also appointed as independent directors. This finding implies that a combination of corporate governance mechanism is more powerful than relying on a single element of corporate governance.     

Strengthening Local Governance in Developing Countries: Partnership as an Alternative Approach

One of the major current concerns in administrative science is the scarcity of partnership-based administration in developing countries, where the capacity of local government is generally weak. Due to the impact of globalisation, the growth of information technology and the rise of third sector organisations, public administration has adopted a new paradigm but given it different names i.e., partnership, public-private partnership, networking, sound governance, good governance etc. As a result, the notion of partnership has emerged as one of the key approaches to meeting the governance challenges of the new millennium focusing, in particular, on building and strengthening the capacity of local governance. As a model, the sustainability of a social system based solely on state capacity has failed in most developing countries. As such, this paper intends to analyse the prospects for partnership based local governance in the developing countries. We argue that there is no alternative to building partnerships at the local government level between the state, private and civil society in order to improve the capacity of local government, enabling it to better attain sustainability, ensure good governance and promote participation in an attempt to mitigate the problems of social exclusion and fragmentation in the delivery of services and products.