Estimating the U.S. Import Demand for Melons: A Dynamic Analysis Approach

The United States is one of the world's leading consumers as well as one of the world's leading producers of melons. However, U.S. melons are produced only from May through December. In order to supplement the domestic demand and make melons available year-round, the United States imports melons from Latin American countries. This article analyzes the U.S. demand for imported fresh and frozen melons using monthly data on import volumes and values. A static and a dynamic linear Almost Ideal Demand System are estimated using Seemingly Unrelated Regression (SUR). The estimated parameters are used to estimate the short- and long-run price and expenditure elasticities.     

The effect of web interface features on consumer online purchase intentions

Corporations spend millions of dollars a year creating and maintaining corporate websites, yet many of these sites fail to reach the organization's goals [Freemantle D. The psychology of crm. Int J Cust Relatsh Manag 2002; http://www.superboss.co.uk/articles2main.htm]. Recent research suggests that these failures reflect poor website design, yet this research lacks the specificity necessary to provide practical recommendations for improving site performance [Rosen EE, Purinton E. Website design: viewing the web as a cognitive landscape. J Bus Res 2004; 57:787-94]. This study fills that gap by providing specific recommendations regarding website design elements that generate positive managerial outcomes. First, the study tests a wide range of design elements to determine those that provide human elements and computer elements. Next, these elements are linked through intermediaries using the uses and gratifications theory, technology acceptance model, and the concept of flow to explain purchase intentions and intentions to revisit the site.     

Bootstrapping the autoregressive distributed lag test for cointegration

We propose a bootstrap autoregressive-distributed lag (ARDL) test. By applying the appropriate bootstrap method, some weaknesses underlying the Pesaran, Shin and Smith ARDL bounds test are addressed including size and power properties and the elimination of inconclusive inferences. In addition, inferences based solely on the significance of the F-test and single t-test from the ARDL bounds test are not sufficient to avoid degenerate cases. The bootstrap ARDL test provides an additional test on the significance of coefficients on lagged levels of the regressors, which provides a better insight into the cointegration status of the model.     

Common purpose and divided loyalties: the risks and rewards of cross-sector collaboration for academic and government researchers

International evidence shows that research is increasingly being carried out in organisational forms built around cross-sectoral (government, academic and business) and transdisciplinary teams with well-defined national social, economic or environmental objectives in view. As a result, new and unfamiliar forms of organisational arrangements for research are emerging within universities and elsewhere. These collaborative research centres have been variously termed 'hybrid' or 'parasitic'. This paper draws upon around 30 in-depth interviews with participants from selected Australian Cooperative Research Centres (CRC). It examines how researchers reconcile the many demands of their dual role, first, as a government researcher or academic, and second as a committed participant in an industry-collaborative research centre. These collaborations go beyond 'applied research' to span fundamental research and immediately useful knowledge. But reward systems and performance measures for academic researchers are still founded largely on 'discovery', while those for government researchers are based upon 'application'. The risk is that researchers will be deflected by the collaboration in ways that conflict with their institutional responsibilities. The paper reports work analysing the management strategies used by the CRCs and their public sector partners to ensure that their common goals are achieved while preserving their institutional interests and the expectations of their research staff. The aim is to identify effective ways of managing the various 'risks' of cross-sector collaborative research and development (R&D) in Australia and more widely.     

Top-floor discounts in residential buildings: Evidence from South Korea

This study assesses the phenomenon of resale price discounts for top-floor units of residential buildings, or “top-floor discounts.” Using 1.9 million resale transactions of apartment units from South Korea, we find that top-floor discounts range from 1.3% to 8.3% of resale prices. We hypothesize that top-floor discounts exist because of larger heating/cooling costs for these units relative to those on lower levels, resulting from relatively more extreme variation in indoor temperatures unique to top-floor apartment units. Using a household-level survey data on energy consumption and exploiting variations in weather conditions and roof material across time and regions throughout South Korea, we provide evidence in support of our hypothesis.     

Modelling spikes and pricing swing options in electricity markets

Most electricity markets exhibit high volatilities and occasional distinctive price spikes, which result in demand for derivative products which protect the holder against high prices. In this paper we examine a simple spot price model that is the exponential of the sum of an Ornstein–Uhlenbeck and an independent mean-reverting pure jump process. We derive the moment generating function as well as various approximations to the probability density function of the logarithm of the spot price process at maturity T. Hence we are able to calibrate the model to the observed forward curve and present semi-analytic formulae for premia of path-independent options as well as approximations to call and put options on forward contracts with and without a delivery period. In order to price path-dependent options with multiple exercise rights like swing contracts a grid method is utilized which in turn uses approximations to the conditional density of the spot process.     

A happy “half way-house”? Medium term inflation targeting in New Zealand

The 2002 Policy Targets Agreement (PTA) between the government and central bank of New Zealand asks the central bank to target inflation “over the medium term” rather than over an annual target. Delegating such a medium term objective to the central bank shifts inflation targeting towards a “halfway-house” between inflation targeting and price level targeting. We show empirically that this helps time consistent policy approximate the first-best commitment policy even when the government asks the central bank to weight output stabilisation differently to society. We estimate the New Zealand economy with a small open economy DSGE model and show that the happiest halfway house is located around a two year averaging horizon at most, which leads to mild improvements in monetary policy efficiency.     

Which Service? How Industry Conditions Shape Firms’ Service‐Type Choices

This article studies the role of industry conditions as determinants of manufacturing and software firms’ decisions to offer services. It draws on the competence perspective on industry evolution and servitization to theorize and provide empirical evidence on how industry conditions affect firms’ choice to offer two distinct types of services—product‐oriented services and customer‐oriented services. It is argued that firms are likely to offer product‐oriented services in Schumpeterian industry environments to address high technological uncertainty by leveraging and reinforcing capabilities in the existing technology. In contrast, firms are likely to offer customer‐oriented services in non‐Schumpeterian industry environments to address value generation uncertainty by building competences in new technological or market areas. Based on longitudinal data on 410 public firms from manufacturing industries and the software industry, empirical evidence suggests that firms are indeed more likely to offer product‐oriented services in Schumpeterian industry environments, such as in the early stage of the industry life cycle and under conditions of high R&D intensity and competition, whereas they are more likely to offer customer‐oriented services in non‐Schumpeterian environments, such as in the later stages of the industry life cycle and in highly cyclical industries.