Network modeling approaches for calculating wholesale NGA prices: A full comparison based on the Greek fixed broadband market

According to the European Commission Recommendation for setting copper and fiber wholesale prices where cost orientation is imposed as a remedy, National Regulatory Authorities (NRAs) should adopt a Bottom-UP Long-Run Incremental Cost Plus (BU LRIC+) costing methodology that estimates the current cost that a hypothetical efficient operator would incur to build a modern efficient Next Generation Access (NGA) network. The starting point of modeling an efficient operator investing in NGA networks is the network modeling approach. In this paper, we compare the most widely adopted network modeling approaches in terms of wholesale fiber-to-the-home (FTTH) prices. In particular, the modified scorched node approach is compared to the extreme cases of the scorched node and the scorched earth approaches. The comparison between the aforementioned scenarios sheds light on the impact of each approach on the wholesale FTTH prices. The main finding of this paper is that the scorched earth approach leads to a maximum of 10% reduction in the short-term access prices compared to the most inefficient scorched node approach, whereas further extending its optimizations by optimizing the number of central offices, both the short-term and long-term wholesale price reductions are quite significant (more than 20%) regardless of service speeds. Consequently, NRAs should consider a geographically differentiated modeling approach when regulating the wholesale market by adjusting the level of scorching in each area and network segment according to the investment plans of telecom operators. An appropriate variation of the modeled network operator's efficiency is expected to more accurately represent the costs of a reasonably efficient operator based on the real market conditions and a forward-looking perspective. These findings provide valuable information to both network operators and telecom regulators.     

The Association Between Operating Cash Flows and Dividend Changes: An Empirical Investigation

The Association between earnings and dividend changes has been established since Lintner's (1956) pioneering work. Subsequent research attempted to establish an association between operating cash flows and dividend changes, given earnings, without success (Simons, 1994). Recently, there has been increased attention in cash flow reporting. Regulatory bodies worldwide have stressed the significance of cash flow information in capital markets. Research on the association between cash flows and dividends has been limited, yielding inconclusive results. The purpose of this study is to re-evaluate and extend prior studies by examining the incremental ability of cash flows to explain dividend changes, given earnings. We argue that a positive relationship between cash flows and dividend changes should exist due to liquidity and accruals management considerations. The empirical evidence of this study supports that the dividend changes-cash flow relationship is significantly positive (a) when operating cash flows are low compared to earnings, and (b) when firm growth is moderate.     

The Nature of Board Nominating Committees and Their Role in Corporate Governance

This study examines the association between the employment and composition of nominating committees with board and ownership characteristics. First, the results suggest that the likelihood of using a nominating committee is inversely related to the level of inside ownership and positively weakly, related to the independence, but not the number, of outside board members. Second, the percentage of insiders participating in the committee is positively related to inside ownership, and negatively related to proxies for outside director quality. Finally, outside directors are more likely to serve on the nominating committee the more outside directorships they hold, and the longer their tenure in the firm. The likelihood of insider committee membership rises with a director's equity investment, with board tenure, and with other committee memberships. Taken together, the results are consistent with nominating committees substituting inside ownership in controlling management, mostly improving board quality, and being staffed with independent, experienced, and knowledgable members.     

The association between audit committees,compensation incentives,and corporate audit fees

This study uses audit fee data from the 2001–2003 reporting periods to examine the relationship between measures of audit committee effectiveness and compensation incentives with corporate audit fees. Our results suggest that audit committee size, committee member expertise, and committee member independence are positively associated to audit fee levels, consistent with the notion that audit committees serve as a complement to external auditors in monitoring management. In contrast, CEO long-term pay and insider ownership are inversely related to audit fee levels, substituting for external audit effort in motivating management. Notwithstanding results on the full sample of firm-years, we uncover significant differences in the determinants of audit fees between the years examined. An important implication of these results is that explaining the intra-firm variation in audit fees over time is clearly necessary in order to understand the antecedents and consequences of audit fees.

Mixing the carrots with the sticks: third party punishment and reward

While the opportunity to punish selfish and reward generous behavior coexist in many instances in daily life, in most laboratory studies, the demand for punishment and reward are studied separately from one another. This paper presents the results from an experiment measuring the demand for reward and punishment by ‘unaffected’ third parties, separately and jointly. We find that the demand for costly punishment is substantially lower when individuals are also given the ability to reward. Similarly, the demand for costly reward is lower when individuals can also punish. The evidence indicates the reason for this is that costly punishment and reward are not only used to alter the material payoff of others as assumed by recent economic models, but also as a signal of disapproval and approval of others’ actions, respectively. When the opportunity exists, subjects often choose to withhold reward as a form of costless punishment, and to withhold punishment as a form of costless reward. We conclude that restricting the available options to punishing (rewarding) only, may lead to an increase in the demand for costly punishment (reward).     

The impact of corporate governance,regulatory differences and futures contracts on movements among portfolios of cross-listed equities: The case of Germany

We test the impact of corporate governance effects on the stock price volatility of the DAX100 and find that these variables increase the volatility and decrease the error terms statistically significant. In addition, controlling for contemporaneous and next period's movements, we find that shocks can have a significant impact on the magnitude of stock return co-movements. In particular, our results show that the impact of the German mark/Euro and German bond price index futures shocks have a significant effect on spillovers, on contemporaneous and next period's co-movements related to firms or equities that cross-list on markets with different creditor bankruptcy protection rules. On the other hand, the impact of the German mark/Euro and the German stock price index shocks related to different shareholder protection rules have a smaller impact on both the next period's co-movements and contemporaneous co-movements among or between markets.     

Cooperators and reciprocators: A within-subject analysis of pro-social behavior

We perform a within-subject analysis of pro-social behavior in the public-good and gift-exchange game. We find that participants classified as cooperators in the public-good game tend to reciprocate higher wages in the gift-exchange game with higher levels of effort. Non-cooperators do not exhibit such tendency. Both types offer similar wages.     

James Andreoni and the quest for others in our utility functions

Over the past 30 years, James Andreoni has produced a body of work like few others in public economics. Motivated by a personal need to understand the determinants of prosocial behavior, and by offering a rare blend of insights from formal theory, controlled experiments, and field data, Andreoni has succeeded in elucidating the broader relevance of prosocial motives and their far‐reaching economic implications. This article offers an overview of his work on prosociality, highlighting some of his seminal contributions and placing them in a historical context. We argue that James Andreoni has had a unique role in the quest to ensure that others have a place in our utility functions.