BEAUTY AND PRODUCTIVITY: THE CASE OF THE LADIES PROFESSIONAL GOLF ASSOCIATION

There is evidence that attractive looking workers earn more than average looking workers, even after controlling for a variety of individual characteristics. The presence of such beauty premiums may influence the labor supply decisions of attractive workers. For example, if one unit of a product by an attractive worker is more rewarded than that by her less attractive coworker, the attractive worker may put more effort into improving her productivity. We examine this possibility by analyzing panel data for individual female golfers participating in the Ladies Professional Golf Association (LPGA) tour. We found that attractive golfers recorded lower than average scores and earn more prize money than average looking players, even when controlling for player experience and other variables related to their natural talents. This finding is consistent with the notion that physical appearance is associated with individual workers' accumulation of human capital or skills. If the human capital of attractive workers is at least partly an outcome of favoritism toward beauty, then the premium estimates obtained by previous studies may have been downwardly biased. (JEL J3, J7, L8)     

LONG‐RUN GROWTH AND WELFARE EFFECTS OF TAX REFORM

This paper introduces an endogenously‐determined fertility rate into a Romer‐type endogenous growth model and, accordingly, investigates the effects on fertility, economic growth and social welfare of a revenue‐neutral tax reform that involves switching from an income tax to a consumption tax. We show that, in a departure from the existing literature, tax reform could be harmful, rather than favourable, to both growth and welfare, due to an endogenous fertility rate. We also conduct a simple numerical analysis to investigate under what conditions the negative effect on growth and welfare occurs.     

CATCHING‐UP AND TECHNOLOGICAL PROGRESS OF THE ASEAN ECONOMIES

Total factor productivity growth of the five ASEAN founding members is estimated by decomposing total factor productivity growth into technical efficiency and technological progress. By using the stochastic frontier model with individual‐specific temporal pattern of technical efficiency for the period of 1981–2003, the present paper identifies the unique temporal pattern of productivity changes in each country, to analyze the relationship between country characteristics and the inherent efficiency and productivity changes. The empirical results indicate that over the study period, growth in Singapore and Malaysia was largely driven by both technological progress and input accumulation, whereas growth in Thailand was induced by an improvement in technical efficiency and through input accumulation.     

CREATION OF A SEPARATE TELECOM REGULATORY AGENCY: A DURATION ANALYSIS OF ITS TIME PATTERN

At the center of the issues set out in the 1997 WTO Agreement on Basic Telecommunication Services was the creation of separate telecom regulatory agencies. Using the Cox proportional hazards model, this study examines how a country's socioeconomic factors affect the country's incentive to reorganize its regulatory structure and create a separate telecom regulatory agency. The main empirical findings suggest that a country's incentive to institute a separate telecom regulatory body is greater when its telecom sector performance is relatively poor and its political environment is more competitive with few institutional barriers. (JEL L52, L96 )     

热泡数值研究

本文对二维热泡的演化过程进行数值研究，所采用的湍流封闭模式为双方程k-ε方程。数值结果表明：无量纲时间大于10后，流动与混合特性均符合自相似关系；热泡流场可分两区。混合区中示踪剂浓度场呈双峰肾形、湍流脉动强烈、旋流含一对涡眼，而外区示踪剂浓度为零、流动有势且符合偶极子模型；热泡流的附加等效质量系数近乎1，自相似阶段热泡的宽高比约为1.45。所得热泡扩展率和混合率亦与实验数据相符。     

Option Trading,Price Discovery,and Earnings News Dissemination*

Abstract. Option market activity increases by more than 10 percent in the four days before quarterly earnings announcements. We show that the direction of this preannouncement trading foreshadows subsequent earnings news. Specifically, we find option traders initiate a greater proportion of long (short) positions immediately before “good” (“bad”) earnings news. Midquote returns to active-side option trades are positive during nonannouncement periods and are significantly higher immediately prior to earnings announcements. Bid-ask spreads for options widen during the announcement period, but traders do not gravitate toward high delta contracts. Collectively, the evidence shows option traders participate generally in price discovery (the incorporation of private information in price), and more specifically in the dissemination of earnings news.     

The Role of Social Media in the Capital Market: Evidence from Consumer Product Recalls

We examine how corporate social media affects the capital market consequences of firms’ disclosure in the context of consumer product recalls. Product recalls constitute a “product crisis” exposing the firm to reputational damage, loss of future sales, and legal liability. During such a crisis it is crucial for the firm to quickly and directly communicate its intended message to a wide network of stakeholders, which, in turn, renders corporate social media a potentially useful channel of disclosure. While we document that corporate social media, on average, attenuates the negative price reaction to recall announcements, the attenuation benefits of corporate social media vary with the level of control the firm has over its social media content. In particular, with the arrival of Facebook and Twitter, firms relinquished complete control over their social media content, and the attenuation benefits of corporate social media, while still significant, lessened. Detailed Twitter analysis confirms that the moderating effect of social media varies with the level of firm involvement and with the amount of control exerted by other users: the negative price reaction to a recall is attenuated by the frequency of tweets by the firm, while exacerbated by the frequency of tweets by other users.     

A REVISIT TO THE STATIONARITY OF OECD INFLATION: EVIDENCE FROM PANEL UNIT‐ROOT TESTS AND THE COVARIATE POINT OPTIMAL TEST*

This paper re‐examines the stationarity of inflation rates in 19 Organisation for Economic Cooperation and Development countries with the use of cross‐sectional information. We employ the panel unit‐root tests that allow for cross‐sectional dependency and the covariate point optimal test. These tests have high power in common due to the exploitation of cross‐sectional information, and they can assist mutually to draw a concrete conclusion on inflation dynamics for all series in the panel. Our empirical results show that allowing for cross‐sectional dependency rejects the null hypothesis that all series in the panel have a unit root, implying that there is at least one stationary series in the panel. With the help of the results of the covariate test, we can distinguish the panel into a group of stationary and a group of non‐stationary series. For robustness, the two groups of series are re‐confirmed by the panel tests. Our results reveal evidence of mean reversion in inflation for 15 of 19 countries, which is significantly stronger as compared to that obtained by the state‐of‐the‐art univariate unit‐root tests.