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.     

Technical change,technical efficiency,and input usage in Taiwanese agricultural growth

We analyse the increase in sales of Pick 3 and Pick 4 daily numbers lottery games and other Ohio Lottery games after Ohio introduced midday drawings for the Pick 3 and Pick 4 games in August 1999. The midday drawings increased Pick 3 sales by 5%, Pick 4 sales by 12%, and total lottery sales by 2% based on our analysis of a 36-month panel dataset of Ohio lottery sales by zip code. Midday drawings raise more revenue from the strongly regressive daily numbers games. However, the introduction of midday drawings does not change the negative income elasticities of demand for numbers games in an economically meaningful manner.     

体验经济背景下扬州古巷旅游开发研究

旅游经济是典型的体验经济,旅游活动与体验经济密切相关。以扬州古巷为研究对象,指出扬州古巷旅游在体验扬州古城文化、感受扬州历史、体验扬州民俗以及感悟人生智慧等方面有较好的体验性。从体验化角度提出了扬州古巷开发的措施,包括体验主题设计、丰富产品内容、提升旅游环境、加强体验参与以及促进智慧旅游等。     

Book reviews

Innovation and Industrial Strength in the UK, West Germany, United States and Japan Joan Cox &; Herbert Kriegbaum London, Policy Studies Institute, 1989, 168pp. Industrial Societies After the Stagnation of the 1970s. Taking Stock from an Interdisciplinary Perspective Burkhard Strumpel (ed.) Berlin, de Gruyter, 1989, 313pp.

The Social Basis of the Microelectronics Revolution Alfonso Hernan Molina Edinburgh, Edinburgh University Press, 1989, xxi + 260pp., £25.00 h/b (also avail-able in p/b)

Innovation and Technology Transfer in Japan and Europe: Industry-Academic Relations Glynn 0. Philips (assisted by Michael Hughes) London, Routledge, 1990, 282pp.) £45.00

Banking 1992-A Eurostudy Special Report Ian Gillespie (ed.) I,ondon, Eurostudy Publishing, 1990, 162pp., $£60 ($99)     

The effect of competence exploration and competence exploitation on strategic entrepreneurship

Strategic entrepreneurship captures firms’ efforts to simultaneously excel at opportunity seeking and advantage seeking. But little research exists into mechanisms that might facilitate strategic entrepreneurship. Drawing on the twin concepts of competence exploration and competence exploitation, we study their effects on strategic entrepreneurship. Theoretically, the entrepreneurial components of strategic entrepreneurship (an entrepreneurial mindset and creating innovation) should benefit from competence exploration while its strategic components (managing resources strategically and executing competitive advantages) should benefit from competence exploitation, but not vice-versa. Our findings, however, suggest that this theoretical dichotomy does not hold up in practice.     

Structural Change And Innovation In U.S. Telecommunications

This paper reexamines broadly. from the standpoint of innovation, the arguments for vertical integration in the U.S. telecommunications industry in light of structural change since the breakup of the Bell System. While basic and applied research became the casualty of the 1984 breakup and the 1995 AT&T split, there is no evidence that the pace of innovative activity and productivity has slowed. Evidence from R&D and patent data suggests some acceleration of innovative activity. However. the service segment of the industry ceased to be the center of technological innovation. The source of future innovation seems to lie in the telecommunications and Internet equipment firms and independent software firms. The emergence of the competitive stand-alone software industry, combined with a trend towards open operating systems and customer demand for greater flexibility, and growing substitution of technology alliances for in-house R&D appear to have undermined the case for vertical integration in the telecommunications industry. From the standpoint of business strategy, the question of whether a firm like AT&T, notwithstanding its huge investments in cable facilities, can develop distinctive and sustainable capabilities through horizontal expansion and ubiquity and one-stopshopping marketing alone remains open.