数控实训教学示例——连接盘的加工

文章探讨了数控加工实训教学示例——造型及加工零件的过程及特点,介绍了笔者的体会和做法。     

An Economic Rationale for a Work and Savings Ethic? J. Buchanan’s Late Works and Business Ethics

This article discusses the possibility of an economic foundation for a work and savings ethic. In particular, James M. Buchanan has, in his late works, endorsed traditional ‘Puritan’ demands for working and saving more, while arguing that this is beneficial for all members of a society. I will question Buchanan’s analysis of the ‘Puritan’ ethic both in normative and methodological respects before aiming at a constructive interpretation.     

Francis Ysidro Edgeworth's Catalan grandfather

Based on a 1831 note by Lord Holland, Sir John Hicks incorrectly concluded in a 1984 article that the maternal grandfather of Francis Ysidro Edgeworth, General Antonio Eroles, ‘a political refugee from Catalonia’ according to Keynes (), was a close relative of the Baron of Eroles. In this article, new information from Spanish and Irish sources about Antonio Eroles and his family is presented. It includes his birth place and day and it details his activities during the period 1823?–?34. As a consequence of this information, Lord Holland and Sir John Hicks' speculations are refuted.     

The Economics of Disclosure and Financial Reporting Regulation: Evidence and Suggestions for Future Research

This paper discusses the empirical literature on the economic consequences of disclosure and financial reporting regulation, drawing on U.S. and international evidence. Given the policy relevance of research on regulation, we highlight the challenges with (1) quantifying regulatory costs and benefits, (2) measuring disclosure and reporting outcomes, and (3) drawing causal inferences from regulatory studies. Next, we discuss empirical studies that link disclosure and reporting activities to firm‐specific and market‐wide economic outcomes. Understanding these links is important when evaluating regulation. We then synthesize the empirical evidence on the economic effects of disclosure regulation and reporting standards, including the evidence on International Financial Reporting Standards (IFRS) adoption. Several important conclusions emerge. We generally lack evidence on market‐wide effects and externalities from regulation, yet such evidence is central to the economic justification of regulation. Moreover, evidence on causal effects of disclosure and reporting regulation is still relatively rare. We also lack evidence on the real effects of such regulation. These limitations provide many research opportunities. We conclude with several specific suggestions for future research.     

Portfolio performance manipulation in collateralized loan obligations

We examine the discretionary activities that CLO managers engage in to pass monthly overcollateralization (OC) tests. These tests require a CLO's loan portfolio value, scaled by the CLO notes’ principal balance, to be above a certain threshold. Using CLOs’ granular disclosures, we develop model-free estimates for discretionary loan fair valuation and transaction-based proxies for strategic loan trading. We find a positive association between these discretionary activities and the probability of avoiding an OC test violation. This association varies predictably with junior noteholders’ influence and CLO market conditions. Strategic trading—but not discretionary fair valuation—relates to worse future CLO performance.     

Potential and recognized boundary spanners in multinational corporations

Boundary spanners play an important role in multinational corporations (MNC), yet it is unclear who these valuable individuals are and why certain individuals, and not others, perform this role. We advance a ‘recognition’ perspective based on whether and how relevant others on both sides on the boundary experience positive impact. A dynamic integrated mixed method analysis of 118 individuals involved in headquarters-subsidiary interactions in four MNCs, shows that only a minority are ‘recognized boundary spanners’, experienced by others to positively impact intergroup relations. We identify different categories and mechanisms of recognition, and make a methodological contribution by integrating qualitative and quantitative analysis.