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.     

Entry may increase network providers’ profit

In this paper the incentives for platform sponsors to open up their networks for independent rivals is analyzed. It is shown that open access may increase the platform sponsors’ profit levels and enhance quality improving investments. In addition, it is shown that a commitment to allow entry reduces the difference between ex ante and ex post compatibility incentives.     

Portfolio optimization under model uncertainty and BSDE games

We consider robust optimal portfolio problems for markets modeled by (possibly non-Markovian) Itô–Lévy processes. Mathematically, the situation can be described as a stochastic differential game, where one of the players (the agent) is trying to find the portfolio that maximizes the utility of her terminal wealth, while the other player (“the market”) is controlling some of the unknown parameters of the market (e.g., the underlying probability measure, representing a model uncertainty problem) and is trying to minimize this maximal utility of the agent. This leads to a worst case scenario control problem for the agent. In the Markovian case, such problems can be studied using the Hamilton–Jacobi–Bellman–Isaacs (HJBI) equation, but these methods do not work in the non-Markovian case. We approach the problem by transforming it into a stochastic differential game for backward stochastic differential equations (a BSDE game). Using comparison theorems for BSDEs with jumps we arrive at criteria for the solution of such games in the form of a kind of non-Markovian analogue of the HJBI equation. The results are illustrated by examples.     

Knowledge of Inter-customer Relations as a Source of Value Creation and Commitment in Financial Service Firm's Intermediation

This paper develops a knowledge perspective on value creation in organisations that employ mediating technology to facilitate inter-customer relations. Mediators, individually and collectively, build networks of customers between whom linking can take place, and they provide services that facilitate inter-customer exchanges. Earlier research has shown the importance of size and standardisation in mediation. A different stream of research has shown that contextual knowledge is important for problem solving and innovation in organisations. Combining theories of mediating technology and situated problem solving, the paper posits that inter-customer relations constitute the fundamental context for value creation of firms using the mediating technology. LISREL is used to test relationship-level, cross-sectional hypotheses that link knowledge of inter-customer relationships, added value, and customer commitment to bank services for small firms. This work extends Thompson's work on mediating technology with implications for organisation action by demonstrating that mediators' knowledge of inter-customer relationships is an important resource in intermediation. Three contributions are made to strategic management and organisation theory. First, the paper provides a deeper understanding of the relationship between knowledge and committed customers. Second, fundamental resources are developed for firms using mediating technology. Finally, the use of the situated knowledge concept is extended to inter-customer relations, thus explaining performance beyond the contexts to which the concept has previously been applied. The findings have implications for segmentation practices, organisation domain decisions and the corresponding organisational structures, and practices that can provide effective service to inter-customer relations rather than to atomistic independent customers.     

From the blogosphere into the parliament: The role of digital technologies in organizing social movements

In this paper, we present a process model exploring the roles played by digital technologies (DTs) in the organization of collective action (CA) of social movements (SMs) at different points in their lifecycles. The process model, which is based on an exploratory case study of the Italian Five Star Movement, relates the environmental conditions to the working logic, structure and use of DTs at three different stages of the SMs. We explain how these choices are adopted at each stage to address internal and environmental challenges and how they create further challenges to be addressed to pass to the next stage. We further explore the dynamics between the logic of connective and collective action and reflect on the growing need for structures and control. By so doing, our work addresses the need for a better understanding of the coevolution between DTs and organizational structures and of the ways in which DTs are used to mobilize people to sustain CA along the SM lifecycle.     

FLOWS OF THE PACIFIC: ASIAN FOREIGN EXCHANGE MARKETS THROUGH TRANQUILITY AND TURBULENCE

Using the longest data set on foreign exchange (FX) order flow to date, along with the broadest coverage of currencies to date, we examine the effect of FX order flow on exchange rates across small and large currencies, currencies with floating or fixed regimes, and across both tranquil and turbulent periods. Over our 15 years of data for 11 Asian and Australasian currencies, we find that order flow has a potentially strong impact on all exchange rates in the sample. The effect is strongest on floating exchange rates, both economically and statistically, but is sizeable also on the other exchange rates, especially during periods of turbulence. By creating a measure of regional order flow, we show that all exchange rates depreciate as flows are moved out of Asia/Australasia and into US dollars. This is true both across regimes and if their own flow is not included in the structure of the regional flow.     

Forming and Dissolving Partnerships in Cooperative Game Situations

A group of players in a cooperative game are partners (e.g., as in the form of a union or a joint ownership) if the prospects for cooperation are restricted such that cooperation with players outside the partnership requires the accept of all the partners. The formation of such partnerships through binding agreements may change the game implying that players could have incentives to manipulate a game by forming or dissolving partnerships. The present paper seeks to explore the existence of allocation rules that are immune to this type of manipulation. An allocation rule that distributes the worth of the grand coalition among players is called partnership formation‐proof if it ensures that it is never jointly profitable for any group of players to form a partnership and partnership dissolution‐proof if no group can ever profit from dissolving a partnership. The paper provides results on the existence of such allocation rules for general classes of games as well as more specific results concerning well‐known allocation rules.     

The importance of consumer multihoming (joint purchases) for market performance: Mergers and entry in media markets

Consumer “multihoming” (watching two TV channels, or buying two news magazines) has surprisingly important effects on market equilibrium and performance in (two‐sided) media markets. We show this by introducing consumer multihoming and advertising finance into the classic circle model of product differentiation. When consumers multihome (attend more than one platform), media platforms can charge only incremental value prices to advertisers. Entry or merger leaves consumer prices unchanged under consumer multihoming, but leaves advertiser prices unchanged under single‐homing: Multihoming flips the side of the market on which platforms compete. In contrast to standard circle results, equilibrium product variety can be insufficient under multihoming.     

Access price structure and entrant build-or-buy incentives in mobile markets

Journal of Regulatory Economics - We consider a market structure with three mobile providers, two of which are vertically integrated with nationwide coverage. The third provider (an entrant)...     

Going Through Hell: Increased Work Effort in the Aftermath of Terrorism in Norway*

I analyze how sickness‐absence behavior in Norwegian municipalities was affected by exposure to the terrorist attack in Norway in 2011. The main finding is that in municipalities from which a resident was killed in the attack, sickness absence declined by 4 percent compared with municipalities without victims. The effect is precise, stable, and persistent. The results do not seem to be driven by changing labor market composition. The effect is found also in neighboring municipalities and is larger for people close to the age of the victims.