The impact of political connections on government bailout: the 2008 credit crunch in the United States

Why is there so little money in contributions to political action committees (PAC) in United States’ politics? While there may be several explanations for this puzzle, we consider corporate PAC contributions as an insurance-like instrument that induces firms’ expectations of safeguard at times of grave need, with the 2008 credit crunch as a case in point. Given the unlikely occurrence of a credit crunch, few financial firms invest in PAC contributions. However, we find firms that make PAC contributions may gain ex ante benefits of corporate PACs as protection from financial distress by undertaking profitable but risky projects that later become illiquid assets while requiring the bailout money during the 2008 credit crunch. We also find that both consistent PAC investments over election cycles and subsequent lobbying activity to corporate PACs further allow firms to utilize their political ties as safeguard and demand additional bailout money. Our instrumental variable analysis confirms that firms with prior experience in political investments are found to enhance the likelihood and effectiveness of PAC contributions and related political investments.     

Panel data models with multiple time-varying individual effects

This paper considers a panel data model with time-varying individual effects. The data are assumed to contain a large number of cross-sectional units repeatedly observed over a fixed number of time periods. The model has a feature of the fixed-effects model in that the effects are assumed to be correlated with the regressors. The unobservable individual effects are assumed to have a factor structure. For consistent estimation of the model, it is important to estimate the true number of individual effects. We propose a generalized methods of moments procedure by which both the number of individual effects and the regression coefficients can be consistently estimated. Some important identification issues are also discussed. Our simulation results indicate that the proposed methods produce reliable estimates.     

Bivariate non-central negative binomial distribution: Another generalisation

Summary Another bivariate generalisation (Type V) of the non-central negative binomial distribution is considered. This generalisation is constructed (i) as a latent structure model; (ii) as an extension of an accident proneness model investigated by Edwards/Gurland (1961); and (iii) as a reversible stochastic counter model. The third construction gives, as a result, an apparently new formulation of the Edwards/Gurland model. The probabilities, moments, recurrence formulas and some properties are given. An application to the data used by Holgate (1966) is considered.     

An approach to discovering new technology opportunities: Keyword-based patent map approach

This paper proposes an approach for creating and utilizing keyword-based patent maps for use in new technology creation activity. The proposed approach comprises the following sub-modules. First, text mining is used to transform patent documents into structured data to identify keyword vectors. Second, principal component analysis is employed to reduce the numbers of keyword vectors to make suitable for use on a two-dimensional map. Third, patent ‘vacancies’, defined as blank areas in the map that are sparse in patent density but large in size, are identified. The validity of the vacancy is then tested against such criteria as technological criticality and technological trends. If a vacancy is judged as meaningful, its technological features are investigated in detail to identify the potential for new technology creation. The procedure of the proposed approach is described in detail by employing an illustrative patent database and is implemented into an expert system for new technology creation.     

AS9003:小供应商的航空航天质量标准

《AS9003，检验和试验质量体系》的出台标志着航空航天工业回归到了一种已被接受的、传统的航空航天质量管理方法。     

On-the-job human capital investment and intertemporal substitution: New evidence on intertemporal substitution elasticity

This paper argues that estimates of intertemporal elasticity of substitution (IES) obtained from standard life-cycle models are subject to a downward bias because they neglect the life-cycle and demographic patterns of on-the-job human capital investment. Taking into account the fact that part of a worker's time at work goes to acquiring human capital in addition to his main task of producing goods, we extend the standard life-cycle model to include time spent on investing in on-the-job human capital and propose a new framework for identifying the IES. We obtain statistically significant evidence that conventional estimates of IES for total hours at work are biased downward about 20% at the intensive margin. The corresponding IES estimates for production hours are biased downward even more, which provides an explanation for why output fluctuation is greater than hours/employment fluctuation over the business cycle.     

Determinants of employee willingness to use feedback for performance improvement: cultural and organizational interpretations

This study was designed to identify determinants of employee willingness to use feedback for performance improvement. The proposed determinants included objectives of appraisal, supervisor's knowledge of subordinate's job, agreed plan for performance improvement, trust in supervisor and perceived fairness and accuracy of performance evaluation. Data were collected in two phases. The first phase consisted of a questionnaire survey among 100 Hong Kong Chinese employees working in public and private sector organizations. Regression analysis of questionnaire data indicated that agreed plan for performance improvement and perceived fairness and accuracy of performance evaluation had significant positive effects on employee willingness to use performance feedback. In the second phase, focus group interviews were held to triangulate survey findings. Interview data suggested that Chinese cultural characteristics of paternalism and personalism influenced the underlying dynamics of the evaluation process. Findings are interpreted in the context of employees cultural and organizational background.     

Jackpot promotion model for Taiwan Lotto

Lotto was inaugurated in January 2002, and immediately became a popular activity in Taiwan; as the big craze following its initial introduction has subsided, the growth of Lotto game sales has slowed. To maintain lottery sales’ momentum, operators have conducted numerous jackpot promotions; this study examines the effectiveness of various jackpot promotional strategies. The analytical results can provide a valuable reference for operators and governmental authorities regarding ways of increasing lottery earnings. The empirical findings of this investigation include the following: (1) the effective price elasticity of Lotto is ?0.382; Taipei Fubon Bank can increase the revenue gained from Lotto by increasing the effective price; (2) operators can significantly increase lottery sales by declaring the jackpot as an unconditional added fixed or variable bonus.