The Spatial Integration of Paddy Markets in Vietnam

This paper examines whether there is spatial integration between and within paddy markets in the north and south of Vietnam. The empirical model developed uses estimates of transfer costs to generalise Ravallion's model of spatial market integration to allow for threshold effects. A sequential testing strategy is used to test for market segmentation, the number of thresholds, long‐run integration, informational efficiency and the Law of One Price within an error‐correction framework. We find neither threshold effects nor weak evidence of paddy market integration between northern and southern Vietnam. There is, however, evidence of both threshold effects and stronger market integration within the Red and Mekong River deltas. Whenever price spreads exceed their thresholds, at least 60% of price changes are transmitted between regional markets within a month. Nonetheless, the instantaneous version of the Law of One Price only holds for a few regimes and market pairs. These results suggest that national level policies cannot be relied upon to stabilise or support paddy prices in Vietnam. Instead, policies need to be designed with the specific production, consumption and marketing characteristics of northern and southern Vietnam in mind.     

PROPERTY MARKET AND THE MACROECONOMY OF MAINLAND CHINA: A CROSS REGION STUDY

Abstract.  This paper studies the nexus between the property market and macroeconomy of China in 1998–2004, using panel data models covering 31 provinces and major cities. The estimates suggest three main conclusions. First, there seemed to be a two-way linkage between property prices and GDP growth. Second, bank credit expansion did not seem to play an 'accelerating' role in property price inflation, although the latter is found to have contributed to bank credit increases in recent years. Third, property price growth may have deviated from fundamentals in coastal areas, as evidenced by a negative relationship between housing and rental prices.     

The impact of information and communication technology on international trade in fruit and vegetables in APEC

The global food marketing network is being constantly reshaped, providing opportunities and challenges for information and communication technology (ICT) to develop and improve international trade in food products. A gravity model of international trade is employed to see if ICT positively affects bilateral international trade in fruit and vegetables between member Asia‐Pacific Economic Cooperation (APEC) economies. We examine if the use of the Internet, mobile telephones, and fixed telephone lines determine the value of bilateral trade. Empirical results for the importance of ICT differ markedly between importing activities and exporting activities in the international value chain of fruit and vegetables in APEC countries. Changes in ICT levels in the import sector of the value chain have no effect on international trade in fruit and vegetables. However, in the export sector, growth in some ICT products has significant positive effects on trade in fruit and vegetables between APEC countries. Surprisingly, the strongest impact was discerned for the traditional form of ICT, fixed telephone lines, but this impact probably reflects the fact that fixed telephone lines are a proxy variable for the general level of infrastructure development. Of the two digital ICTs, mobile telephony and the Internet, only the Internet had a significant impact on trade levels. The further development of the Internet and its diffusion should make exporters in APEC countries more competitive in the fruit and vegetables value chain, and boost their trade values in these products.     

From Voluntarism to Regulation: A Study on Ownership, Economic Performance and Corporate Environmental Information Disclosure in China

This article examines whether economic performance could affect EID and how the relationship is determined by the form of ownership from voluntarism to regulation under the current Chinese context. In this study, our empirical results show that the relationship between firms’ performance and EID is complex and the interactive impact of ownership and economic performance on EID significantly varies from voluntary disclosure to mandatory disclosure. This study provides a more comprehensive understanding of the motivations in corporate EID. The performance–impression theory can be used to explain the disclosure behaviors during the period of voluntary disclosure, while the pressure–legitimacy theory can be used during the period of mandatory disclosure. The finding suggests that when evaluating corporate EID associated with economic performance in emerging economies such as China, it needs to be cautious, as which tends to vary with the form of ownership and whether there is any mandatory regulation in place.     

International tenders and futures hedging

This paper examines the optimal bidding and hedging decisions of a risk‐averse firm that takes part in an international tender. The firm faces multiple sources of uncertainty: exchange rate risk, risk of an unsuccessful tender, and business risk. The firm is allowed to trade unbiased currency futures contracts to imperfectly hedge its contingent foreign exchange risk exposure. We show that the firm shorts less (more) of the unbiased futures contracts when its marginal utility function is convex (concave) as compared with the case that the marginal utility function is linear. We further show that the curvature of the marginal utility function plays a decisive role in determining the impact of currency futures hedging on the firm's bidding behavior. Sufficient conditions that ensure the firm bids more or less aggressively than in the case without hedging opportunities are derived. Copyright © 2006 John Wiley & Sons, Ltd.     

How does cooperative innovation affect innovation performance? Evidence from Chinese firms

This paper explores the impact of different cooperation networks upon their cooperative innovation effect (CIE) and innovation performance, and examined the relationship between the CIE and the innovation performance of firms. Some interesting findings appear. First, the findings indicate that there are significant and positive relationships between the seven cooperation networks and the CIE of firms, of which the internal cooperation network has the most significant and positive impact on their CIE. Second, the findings also reveal that there are significant and positive relationships between the six cooperation networks, except firm–government cooperation (FGC) and the innovation performance of firms. Third, contrary to some studies from developed countries, the results reveal that FGC does not demonstrate any significant impact on the innovation performance of firms. These results enrich and supplement the current understanding of the relationships between cooperation networks and innovation performance.     

Does complex hydrology require complex water quality policy?

Nonpoint‐source water pollution is frequently considered intractable because it is hard to regulate large numbers of small sources and because the science associated with assessing the impact of each source is complex. New Zealand has demonstrated that it is possible to implement a simple cap‐and‐trade system to help reduce nitrogen leaching from many small farms and thereby protect water quality. This paper relates to the second challenge: are complex regulatory systems worthwhile when nitrogen delivery is complex? When nitrogen moves through groundwater to a lake, leaching from different farms reaches the lake at different times and the damage caused is temporally differentiated. Policy that regulates farmers according to the timing of their nitrogen delivery will be more complex than policy that does not. Whether the gain in efficiency justifies this additional complexity can be assessed through modelling. We use an integrated model to estimate the gains from complex nitrogen regulation that incorporates groundwater delivery times relative to simple nitrogen regulation that does not. We find that the gains from more complex regulation are small in the catchment we study and cannot justify the additional complexity required. A sensitivity analysis enables us to identify the types of catchments where complex regulation may be worthwhile.     

Psychology, Behavioral Economics, and Public Policy

Economics has typically been the social science of choice to inform public policy and policymakers. In the current paper we contemplate the role behavioral science can play in enlightening policymakers. In particular, we provide some examples of research that has and can be used to inform policy, reflect on the kind of behavioral science that is important for policy, and approaches for convincing policy-makers to listen to behavioral scientists. We suggest that policymakers are unlikely to invest the time translating behavioral research into its policy implications, and researchers interested in influencing public policy must therefore invest substantial effort, and direct that effort differently than in standard research practices.     

Adolescents’ choice and pursuit of their most important and interesting leisure activities

This study investigated the choice and pursuit of adolescents’ most important and interesting leisure activity. It is underpinned by the concept of serious leisure, recent perceptions of seriousness as a continuum and calls for incorporating contextual elements of serious activity pursuit. A questionnaire survey was administered to 832 students from 10 secondary schools in Hong Kong. Students were asked to nominate leisure activity that they regarded as most important and interesting as well as to complete an adapted version of the Serious Leisure Inventory and Measure (SLIM). Results showed the popularity of sports and performance and graphic arts activities and of psychological reasons for activity choice. There were variations in activity choice between boys and girls and across schools as well as across levels of seriousness in activity pursuit. The study adds to the scant knowledge of adolescents’ serious leisure and enhances understanding of motives for and meanings of serious engagement.