What is the Natural Scale for a Lévy Process in Modelling Term Structure of Interest Rates?

This paper gives examples of explicit arbitrage-free term structure models with Lévy jumps via the state price density approach. By generalizing quadratic Gaussian models, it is found that the probability density function of a Lévy process is a “natural” scale for the process to be the state variable of a market.      

Spatial Patterns of Expenditure Inequalities in Indonesia: 1987, 1990 and 1993

This article investigates the contribution of inter-regional disparity to total national inequality in household expenditure, by decomposing national inequality into within- and between-province components. This is done by applying the Theil inequality decomposition technique to household expenditure data from the National Socio-Economic Survey. Whereas inter-provincial disparity accounted for 12–14% of total inequality among urban households and 7–8% among rural households, urban–rural disparity accounted for 22–24% of total national inequality. A Kuznets curve drawn according to the 1993 Susenas data indicates a peak inequality value of 0.27 (using Theil index T) when the share of urban households reaches 53.2%; this share is much larger than the actual 1993 urbanisation level of 32.1%. Further urbanisation is therefore likely to raise total inequality, even if other conditions remain stable.     

Fiscal Externalities and Efficient Transfers in a Federation

This paper investigates properties of the second best allocation in a fiscal federal system in which both federal tax and intergovernmental grants are involved and the taxation is distortionary. Also, optimal federal grants and tax policies in a decentralized fiscal system are examined. Our major findings are: (i) the second best does not require the equalization of marginal cost of public funds across regions in a conventional form; (ii) matching grants based on either the local tax rates or tax revenues should be introduced to internalize the tax externality; and (iii) once lump-sum and matching grants are optimized, federal tax policy becomes redundant so the optimal fiscal gap is indeterminate.     

Explaining the U-shaped life satisfaction: dissatisfaction as a driver of behavior

Journal of Bioeconomics - We assess the age profile of subjective well-being by adopting a bio-evolutionary perspective that dissatisfaction is a psychological incentive to prompt adaptive...     

Legal structure,business organisations and lobbying: The Japanese publishing sector, 1990–2001

How did incumbents in Japanese publishing maintain resale price maintenance (RPM)? This article sheds light on the inter- and intra-industrial structure that enabled the protection of RPM, or the fixed price system, amid the country-wide liberalisation in the 1990s. By analysing textual data including governmental reports, trade papers in publishing and leaflets adopted for lobbying, the critical decade was reconstructed. It addresses a scarcity of business history literature about the link between RPM and business organisations, particularly concerning lobbying.     

A simple dynamic decentralized leadership model with private savings and local borrowing regulation

This paper considers a simple dynamic decentralized leadership model with local borrowing and regional productivity-enhancing investment. In this model, the central government is benevolent but cannot commit to ex post intergovernmental transfer policies, while local governments act strategically after accounting for the ex post motives of the central government. We then investigate inefficiency in the subgame perfect equilibrium. We analyze the effect of central control on local borrowing and show that central control is of no benefit because ex ante local taxation works to offset it. We find the model yields different policy implications that central control is effective when extended to the case of residential mobility.     

The Psychology of Impulse Buying: An Integrative Self-Regulation Approach

Impulsive buying grossly violates the assumptions of homo economicus. A variety of perspectives on impulse buying are presented, which have been put forward in consumer, economic, social, and clinical psychology. These include heuristic information processing, time-inconsistent preferences, personality traits and values, self-identity, emotions, conscious self-control, and compulsive buying. These perspectives may sometimes lead to contradictory or paradoxical findings. For instance, impulse buying is often associated with joy and pleasure but has also been found related to negative emotions and low self-esteem. Our argument is that impulsive buying can be understood in terms of psychological functioning, in particular as a form of self-regulation. Regulatory focus theory is then used to bring the various perspectives together by classifying each as a promotion focus strategy (e.g., seeking pleasure) or a prevention focus strategy (e.g., avoiding feelings of low self-esteem). Finally, the question is discussed whether consumers can and should be protected against impulsivity. Our assertion is that regulation against misleading practices that play on the vulnerabilities of impulsive buyers could be sharpened and that information provision to consumers and retailers aimed at strengthening consumers’ self-regulatory capacities may mitigate adverse consequences of impulse buying.