别说了,把话筒交给消费者吧——成功的用户自创内容（user-generated-content）活动

大家最近有去唱过卡拉OK吗？其实从唱K中获得的欢乐与用户自创内容活动颇有相似之处。在卡拉OK娱乐场所,流行歌曲和伴奏音乐固然是至关重要的。没有它们,就没办法唱歌!     

Border effects for domestic and international Canadian passenger air travel

An augmented gravity model of passenger air travel between five Canadian airports and destinations within and without of Canada reveals a substantial border effect. After controlling for GDP, populations and distance, the number of seats offered on domestic routes is about six times the number on international flights. This result is consistent with the border effects found in studies of international merchandise trade.     

Escalating penalties for repeat offenders: a note on the role of information

The severity of the sanction for a given offense is often determined by the offense history of the offender. We establish that this policy can be welfare-maximizing if individuals are imperfectly informed about the magnitude of the sanction. Imperfect information distorts individuals’ perception of the expected sanction of the first offense. Once detected, individuals learn about the sanction applicable to their act, making this argument less relevant for consecutive offenses.      

Let's Get Messi? Top‐Scorer Productivity in the European Champions League

Getting a player like Lionel Messi in the squad would seem like a dream come true for a professional football manager, but is it always best to have top‐quality players? We study the determinants of top goal‐scorers’ productivity in the UEFA Champions League. We find evidence of a concave relationship between age and productivity and uncover an inverted‐U relationship between performance and minutes played. Finally, we find a positive effect on height, being left footed and being a striker on the probability of scoring a goal. The results have important implications for managers both in looking to sign on new players and to maximise their potential during a competitive match.     

Why Has Australian Wages Growth Been So Low? A Phillips Curve Perspective

Wages growth in Australia has recently been the lowest in two decades. One possible explanation is a decline in the non‐accelerating inflation rate of unemployment (NAIRU). We examine this hypothesis by estimating a wage Phillips curve including a time‐varying NAIRU. Our findings are: (i) the NAIRU has recently been around 5.5 per cent; (ii) our approach increases the precision of the NAIRU estimates; (iii) low inflation expectations have been an important contributing factor; and (iv) the long‐run annual wages growth is nearly 3 per cent. We also find that the underutilisation rate suggests greater slack exists, but is less useful in explaining wage developments.     

Is a Policy of Free Movement of Workers Sustainable?

In this paper, we study the costs and benefits of the adoption of a policy of free movement of workers. For countries to agree on uncontrolled movements of workers, short‐run costs must be outweighed by the long‐term benefits of better labor‐market flexibility and income smoothing. We show that such a policy is less likely to be adopted when workers are more impatient and less risk‐averse, when production technologies display stronger decreasing returns, and when countries trade a significant share of their products.     

The Load Model: an alternative to QALY

Background: QALYs are widely used in health economic evaluation, but remain controversial, largely because they do not reflect how many people behave in practice. This paper presents a new conceptual model (Load Model) and illustrates it in comparison with the QALY model.

Methods: Load is the average annual weight attributed to morbidity and mortality over a defined period, using weightings based on preference judgements. Morbidity Load is attributed to states of illness, according to their perceived severity. When people are in full health, Load is zero (no morbidity). Death is treated as an event with negative consequences, incurred in the year following death. Deaths may be weighted equally, with a fixed negative weight such as ?100, or differ according to the context of death. After death, Load is zero. In a worked example, we use the standard gamble method to obtain a weighting for an illness state, for both Load and QALY models. A judge is indifferent between certainty of 1.5 years’ illness followed by death, or a 50/50 chance of 1.5 years’ full health or 1-year illness, each followed by death. The weightings calculated are applied to a hypothetical life, 72 years in full health followed by 3 years with illness then death, using both models. Three other hypothetical outcomes are also compared.

Results: For an example life, the relative size of the morbidity component compared with the mortality component is much higher in the Load model than in the QALY model. When comparing alternative outcomes, there are also substantial differences between the two models.

Conclusions: In the Load model the weight of morbidity, relative to mortality, is very different from that in the QALY model. Given the role of the QALYs in economic evaluation, the implications of an alternative, which generates very different results, warrant further exploration.     

Discussion of “Divisional performance measurement and transfer pricing for intangible assets”

The conference paper by Johnson (2006, Review of Accounting Studies, forthcoming) develops an incomplete-contracting transfer pricing model with a number of novel features: taxation, sequential investments, and intangible assets being transferred. This discussion aims to disentangle these features so as to highlight those that are the key drivers of the results. Moreover, I show that some of the results can be generalized to settings involving a greater level of technological interdependency between the divisions.     

Generalized Progress of Abatement Technology: Incentives Under Environmental Liability Law

This paper considers the incentives environmental liability creates to improve pollution abatement technology. Our analysis considers technical progress in end-of-pipe abatement and in the production technology used, thereby generalizing the approach taken by Endres et?al. (Environ Resour Econ 36:341?C366, 2007). We establish that this generalization has drastic repercussions on incentives under negligence liability, while the performance of strict liability is not compromised. Furthermore, it is demonstrated that the social desirability of investment in abatement or production technology (or both) decisively determines how ex-ante and ex-post regulation fare with respect to welfare maximization in the case of negligence liability.