Die <Emphasis Type="Italic">Zeitschrift für die gesamte Versicherungswissenschaft</Emphasis> bleibt die Zeitschrift für alle Disziplinen der versicherungswissenschaftlichen Forschung

Ohne Zusammenfassung     

Effective regulation versus tacit collusion in the long-distance market: an empirical analysis

Regulatory decisions often must be made in an atmosphere of uncertainty, and arguments presented by the affected parties frequently add to, rather than resolve, that uncertainty. Here, we examine several of the deregulatory decisions affecting the long-distance market that were rendered by the FCC over the two-decade period following the divestiture of AT&T. Our purpose is to provide empirical evidence relevant to some of the arguments regarding market conditions that were presented during that period. Findings suggest that some of the more prominent allegations are not supported by the data.      

Priority-driven behaviors under the Boston mechanism

We study school choice markets where the non-strategy-proof Boston mechanism is used to assign students to schools. Inspired by previous field and experimental evidence, we analyze a type of behavior called priority-driven: students have a common ranking over the schools and then give a bonus in their submitted preferences to those schools for which they have high priority. We first prove that under this behavior, there is a unique stable and efficient matching, which is the outcome of the Boston mechanism. Second, we show that the three most prominent mechanisms on school choice (Boston, deferred acceptance, and top trading cycles) coincide when students’ submitted preferences are priority-driven. Finally, we run some computational simulations to show that the assumption of priority-driven preferences can be relaxed by introducing an idiosyncratic preference component, and our qualitative results carry over to a more general model of preferences.     

Beyond state-owned banks: Evidence from Shanghai bank customers

In light of a reformed and liberalized banking sector in China, this article sets out to examine the role of socio-demographic factors and customers’ banking experiences and priorities in customers’ selection of banks. As state-owned banks have long dominated the banking industry, the article also investigates the receptiveness of the Shanghai Chinese towards newer commercial banks, such as the joint-stock banks, and the penetration of foreign banks into China's banking industry. Comparing customers who use state-owned banks only and those who patronize joint-stock banks, it is found that education, income, age, occupation sector and location of hometown affects customers of state-owned banks only. Further, it is also found that state-owned banks remain dominant despite the opening up of the banking sector, and perception towards state-owned banks remains favourable.     

Endogenous Average Cost Based Access Pricing

We analyze an endogenous average cost based access pricing rule, where both the regulated firm and its rivals realize the interdependence among their outputs and the regulated access price. In contrast, the existing literature on access pricing has always assumed that the access price is exogenously fixed ex-ante. We show that endogenous access pricing neutralizes the artificial cost advantage that is enjoyed by the incumbent firm. Further, endogenous access pricing results in a consumer surplus that is equal to or higher than that under exogenous access pricing. If the entrant is more efficient than the incumbent, then the welfare under endogenous access pricing is higher than that under exogenous access pricing.     

Political trust as rational belief: Evidence from Chinese village elections

Democratic governance is believed to improve government responsiveness to citizens’ demand for public goods. In China, villagers’ committee elections represent a major progress in China’s development toward good governance. We develop a rational model to explain villagers’ participation. Utilizing a national survey of rural residents in 2005, this paper tests the insights of the model. Two findings are of interest to the students of voting and elections. First, there is disagreement over the causal relationship between political trust and voting. This paper offers a rational interpretation of political trust by emphasizing the informational aspect of the concept. Second, voting is generally theorized as a process of overcoming various costs. The prospect of benefits figures more prominently in Chinese village elections. Our findings highlight the pivotal role of township governments in China’s rural politics and reveal the inner dilemma of democratization in China.     

Towards equilibrium offers in unit commitment auctions with nonconvex costs

We compare two types of uniform-price auction formats commonly used in wholesale electricity markets—centrally committed and self-committed markets. Auctions in both markets are conducted by an independent system operator that collects generator bids and determines which generators will operate and how much electricity each will produce. In centrally committed markets, generators submit two-part bids consisting of a startup cost and a variable energy cost. Self-committed markets force generators to incorporate their startup costs into a one-part energy bid. The system operator in a centrally committed system ensures that each generator recovers the startup and energy costs stated in its two-part bid, while no such guarantees are made in self-committed markets. The energy cost ranking and incentive properties of these market designs remains an open question. While the system operator can determine the most efficient dispatch with a centralized market, the auction mechanism used to solicit generator data compels generators to overstate costs. Self commitment might involve less efficient dispatch but have better incentive properties. We derive Nash equilibria for both market designs in a symmetric duopoly setting. We also derive simple conditions under which the two market designs will be expected cost-equivalent.