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41.
Jeff Madura Thanh Ngo Ariel M. Viale 《The Quarterly Review of Economics and Finance》2012,52(1):49-62
We identify time-varying industry and macroeconomic factors that explain the observed variation in takeover premiums over time. Results support our hypotheses that some industry and economic factors can increase the growth prospects in an industry, which boosts expected synergies and/or demand for the target firm, and therefore increases the merger premiums. Merger premiums are higher when the target's corresponding industry experiences higher growth, has more research and development (a proxy for expected growth), and has less dispersion in performance among firms within the industry. Merger premiums are also positively related to capital liquidity, which can enhance economic growth and competition for target firms, and positively related to volatility in economic growth, which affect merger waves and the demand for target firms over time. 相似文献
42.
To identify poor households, the government of Vietnam applies a combination of proxy means tests and quick collection of income data. This paper examines how well the government's poverty identification reaches the really poor in Vietnam. It is found that there is a large difference between the poverty rate for provinces and districts reported by the government and the rates estimated using expenditure and income data from independent household surveys. There is also a large difference between the poverty status of households identified by local authorities and the poverty status identified by income or expenditure data. More than 50 per cent of the poor households identified by local authorities are not poor in terms of income or expenditure measures. A better identification approach would be to use only proxy means tests and not income data collected using the simple questionnaire. 相似文献
43.
Which covariates should be controlled in propensity score matching? Evidence from a simulation study
Nguyen Viet Cuong 《Statistica Neerlandica》2013,67(2):169-180
Propensity score matching is a widely‐used method to measure the effect of a treatment in social as well as medicine sciences. An important issue in propensity score matching is how to select conditioning variables in estimation of the propensity scores. It is commonly mentioned that variables which affect both program participation and outcomes are selected. Using Monte Carlo simulation, this paper shows that efficiency in estimation of the Average Treatment Effect on the Treated can be gained if all the available observed variables in the outcome equation are included in the estimation of propensity scores. This result still holds in the presence of non‐sampling errors in the observed control variables. 相似文献
44.
Oluwarantimi Adetunji Cuong Viet Pham Ngan Tran Thi Abdulgafoor M. Bachani 《International journal of injury control and safety promotion》2020,27(3):319-326
Abstract This paper presents the trend of seatbelt use, disaggregated by vehicle occupants, in Ho Chi Minh City between 2016 and 2018. We conducted statistical analyses to identify the determinants of seatbelt use, including the effect of a new fine imposed against seatbelt law violation in the rear seats that became effective in January 2018. Seatbelt use was observed in at least half of all vehicle occupants, and drivers were more likely to use seatbelts than passengers. Only 4.4% of children younger than 5-years and 2.5% of 5 to12-year-olds used a child restraint system. Seatbelt use increased among all occupants after the imposed fine, especially among rear-seat passengers. Imposing new or increasing fixed penalties, with enforcement and public education, may increase seatbelt use to prevent road traffic injuries. 相似文献
45.
We show that a monopolist's profit is higher if he refrains from collecting coarse information on his customers, sticking to constant uniform pricing rather than recognizing customers' segments through their purchase history. In the Markov perfect equilibrium with coarse information collection, after each commitment period, a new introductory price is offered to attract new customers, creating a new market segment for price discrimination. Eventually, the whole market is covered. Shortening the commitment period results in lower profits. These results sharply differ from the ones obtained when the firm can uncover the exact willingness-to-pay of each previous customer. 相似文献
46.
Vertical Integration, Foreclosure, and profits in the Presence of Double Marginalization 总被引:2,自引:0,他引:2
Whether vertical integration between a downstream oligopolist and an upstream oligopolist is profitable for an integrated pair of firms is shown to depend on whether one means by this that profits increase no matter what other firms do, that all integrated firms are better off when all firms are integrated than when none are, or simply that no downstream-upstream pair of firms has an incentive to deviate from a situation where all firms are integrated. It is also shown to depend on the number of firms in each oligopoly and on the type of interaction that is assumed between firms that are integrated and firms that are not. In particular, it is shown that if no restriction is put on trade between integrated and nonintegrated firms, integrated firms may continue to purchase inputs from the nonintegrated upstream firms, with the goal of raising their downstream rivals' costs. Furthermore, even though firms are identical, asymmetric equilibria, where integrated and nonintegrated firms coexist, may actually arise as an outcome of the integration game. 相似文献
47.
Cristhian Mellado-Cid Surendranath R. Jory Thanh N. Ngo 《Review of Quantitative Finance and Accounting》2018,50(4):1201-1226
In this paper, we study the link between real earnings management and firm value. Consistent with prior studies, we expect the ability of a firm to generate future cash flows to be significantly impaired by its use of real activities manipulations. Using a cross-section of companies from the Standard & Poor’s Compustat database from 1990 to 2013, we find that firms with higher real earnings management are associated with lower industry-adjusted Tobin’s Q and firm-specific misvaluation measure. Our results are consistent under several regression techniques addressing potential endogeneity issues and alternative proxies for real earnings management after controlling for known factors to affect firm market values. 相似文献
48.
Long Thanh Giang Cuong Viet Nguyen Tuyen Quang Tran 《Asian-Pacific economic literature》2016,30(1):80-98
We examine the linkages between firm agglomeration and the welfare of households in Vietnam. We measured firm agglomeration by per capita firm output at the district level and household welfare by per capita income, expenditure, and poverty. We find that firm agglomeration helps households move from the informal sector to the formal sector. As a result, there is a positive effect of firm agglomeration on per capita income, per capita expenditure, and poverty reduction, albeit of a small and time‐decreasing magnitude. The effect of firm agglomeration on per capita expenditure tends to be higher for households with men, younger, and more educated heads than households with women, older, and less educated heads. Households in rural areas and those that do not have crop land are more likely to benefit from firm agglomeration than those living in urban areas and having crop land. 相似文献
49.
We construct a dynamic competitive model with a stock of human‐made capital and several stocks of natural resources and ask under what conditions consumption will be constant if infinitesimal households with heterogeneous preferences and endowments discount their utility at an endogenous rate that depends on some macroeconomic variables. We show that for consumption to be constant, this function must be the marginal product of capital function. We demonstrate that Hartwick's rule holds in a modified form that takes account of natural growth of resource stocks. 相似文献
50.
Yui-Tim Wong Chi-Sum Wong Hang-Yue Ngo 《International Journal of Human Resource Management》2013,24(6):883-900
This study examines the factors affecting joint venture employees' loyalty to supervisor in the People's Republic of China. The trust framework and justice framework are employed to develop two competing models for studying the antecedents and consequences of loyalty to supervisor in the context of Chinese joint ventures. The direct effect model proposes that there is a direct effect of employees' perception of interactional justice and of trust in supervisor on their loyalty to supervisor, while the mediation model considers trust in supervisor as a mediating variable between interactional justice and loyalty to supervisor. Additionally, the two models suggest that loyalty to supervisor affects the in-role job performance and organizational citizenship behaviour of workers. The results showed that the mediation model was better supported than the direct effect model. It has been found that trust in supervisor mediates the relationships between interactional justice and loyalty to supervisor. In addition, loyalty to supervisor has significant effects on both employees' performance and organizational citizenship behaviour. Practically, the findings of the present study provide considerable implications for managing Chinese workers in joint ventures. 相似文献