Scale and scope economies for drug abuse treatment costs: evidence for Washington State

Drug abuse treatment has been pervasive in the US in the recent years, and the associated direct treatment costs approached $18 billion in 2001. However, there have been few published studies on scale economies, and none on scope economies, for drug abuse treatment costs. We estimate a restricted cost function for 17 hospitals in Washington State that provided inpatient and/or outpatient drug abuse treatment during the years 1997–2004. We find significant evidence of scale economies for hospitals that provide only outpatient drug abuse treatment services. The marginal costs of outpatient services are even smaller for hospitals that produce both outpatient and inpatient drug abuse treatment services. Further, these joint-production hospitals exhibit diseconomies of scope, or specialization economies. These results all imply that recent trends towards additional outpatient treatment services will enhance cost efficiency.     

Web-based permission marketing: Segmentation for the lodging industry

Permission marketing is becoming an important tool in maintaining relationships with travelers via the Internet. Its growing importance can be seen in tourism marketing, specifically in the lodging industry. With an increase in industry use, the effectiveness of this technique needs assessment. This paper initiates this process by examining current methods used to collect contact information for the purpose of permission marketing. Three segments of the market are identified and compared based upon their willingness to supply contact information. Significant differences were found in socio-demographics, online habits, trip characteristics, and website design preferences. Implications for lodging marketers are presented and future research topics are discussed.     

The Saga of the Directive on Misleading Advertising

After reviewing the legislative history and the current situation regarding the adjustment of member states' laws to implement the European Community's Directive on Misleading Advertising, it is clear that those who plan or hope to influence future regulatory activities can learn significant lessons from the past. Regulation of advertising should be in accordance with economic and social facts and opinions that are relevant to European conditions, indeed to conditions in each member state. All major interested and knowledgeable parties—business, consumer groups and government—should be consulted and involved directly in the process. The advertising business should make efforts to educate others accurately about the nature of advertising, the process of preparing effective and appropriate advertising and advertising's effects on consumers, the economy and society. The advertising business should also develop self- regulatory systems more fully.     

Global Value Chains and Technological Capabilities: A Framework to Study Learning and Innovation in Developing Countries

This paper presents a critical review of the global value chain (GVC) literature in light of the “technological capabilities” approach to innovation in less-developed countries (LDCs). Participation in GVC is beneficial for firms in LDCs, which are bound to source technology internationally. However, the issues of learning and technological efforts at the firm level remain largely hidden in the GVC literature. We propose a shift in the empirical and theoretical agenda, arguing that research should integrate the analysis of the endogenous process of technological capability development, including specific firm-level efforts, and of the mechanisms allowing knowledge to flow within and between different global value chains into the GVC literature.     

Inference regarding multiple structural changes in linear models with endogenous regressors

This paper considers the linear model with endogenous regressors and multiple changes in the parameters at unknown times. It is shown that minimization of a Generalized Method of Moments criterion yields inconsistent estimators of the break fractions, but minimization of the Two Stage Least Squares (2SLS) criterion yields consistent estimators of these parameters. We develop a methodology for estimation and inference of the parameters of the model based on 2SLS. The analysis covers the cases where the reduced form is either stable or unstable. The methodology is illustrated via an application to the New Keynesian Phillips Curve for the US.     

The Impacts of Technology, Trade and Outsourcing on Employment and Labor Composition

Empirical studies of skill-biased technological change are typically based on a simple production or cost function framework and limited information on technology and labor composition. In contrast, we simultaneously assess the impacts of trade, technology, and outsourcing on shifts in labor demand using a dynamic cost function framework and comprehensive measures of workforce composition and investment in technology. Our findings indicate that technological change has had the largest impact on changes in labor composition. However, the indirect impact of trade on shifts in employment augments its direct impact because trade stimulates computerization, which further exacerbates skill-biased technological change.     

University fees and the demand for STEM degrees

The 2006 increase in university tuition in the UK was followed by a 3–4% reduction in the proportion of students choosing STEM degrees, due either to a change in the composition of students, or to similar students selecting away from STEM subjects. This article tests the latter hypothesis, estimating the effect of the fees for comparable students using propensity score matching on a rich set of covariates. Results suggest that the change was entirely driven by compositional changes.