The clinical and economic burden of significant bleeding during lung resection surgery: A retrospective matched cohort analysis of real-world data

Objectives: The objective of this retrospective study was to quantify the clinical and economic burden of significant bleeding in lung resection surgery in the US.

Methods: This study utilized 2009–2012 data from the Premier Perspective Database^TM. Adult patients with primary pulmonary lobectomy or segmentectomy procedures were categorized by the surgical approach (VATS vs open) and primary diagnosis (primary or metastatic lung cancer vs non-lung cancer). Patients requiring ≥3 units of blood products with at least 1 unit of PRBCs: “significant bleeding” cohort; those requiring <3 units: “non-significant bleeding” cohort; and those not requiring blood products: “no bleeding” cohort. A matched cohort analysis was performed between the “significant bleeding” and the “no bleeding cohort” using matching variables: hospital, lung cancer diagnosis, year of surgery, APR-DRG severity score, procedure type and approach, age, and gender.

Results: The “All-patient” cohort comprised 21,429 patients: 213 “significant bleeding”; 2,780 “non-significant bleeding”; and 18,436 “no bleeding”. Overall incidence of significant chest bleeding was 0.99%. Patients from “significant bleeding” cohort and “non-significant bleeding” cohort had 2.5 days and 2 days (p?p?Conclusions: Although significant bleeding during lung resection surgery is rare, patients with such complication could stay longer at the hospital and cost an average of $13,103 more than those without.     

An SVAR Approach to Evaluation of Monetary Policy in India: Solution to the Exchange Rate Puzzles in an Open Economy

Following the exchange-rate paper by Kim and Roubini (J Monet Econ 45(3):561–586, 2000), we revisit the questions on monetary policy, exchange rate delayed overshooting, the inflationary puzzle, and the weak monetary transmission mechanism; but we do so for the open Indian economy. We further incorporate a superior monetary measure, the aggregation-theoretic Divisia monetary aggregate. Our paper confirms the efficacy of the Kim and Roubini (J Monet Econ 45(3):561–586, 2000) contemporaneous restriction, customized for the Indian economy, especially when compared with recursive structure, which is damaged by the price puzzle and the exchange rate puzzle. The importance of incorporating correctly measured money into the exchange rate model is illustrated, when we compare models with no-money, simple-sum monetary measures, and Divisia monetary measures. Our results are confirmed in terms of impulse response, variance decomposition analysis, and out-of-sample forecasting. In addition, we do a flip-flop variance decomposition analysis, finding two important phenomena in the Indian economy: (i) the existence of a weak link between the nominal-policy variable and real-economic activity, and (ii) the use of inflation-targeting as a primary goal of the Indian monetary authority. These two main results are robust, holding across different time period, dissimilar monetary aggregates, and diverse exogenous model designs.     

The spillover effects of United States foreign trade zones

This article empirically tests the geographic and economic spillover effects of foreign trade zones (FTZs) in the United States by utilizing propensity score matching and the geographic rules of the programme. While these FTZ sites are designed to support manufacturing, we find that ZIP codes that receive FTZ sites experience growth in new and existing non-manufacturing establishments. Our results also show that FTZs spillover into nearby ZIP codes. We find that ZIP codes that border FTZ ZIP codes also experience positive effects on non-manufacturing establishments and these spillovers are strongest within a 5-mile radius of an FTZ.     

Do Managerial Motives Impact Dividend Decisions in REITs?

Conflict of interest between shareholders (principal) and managers (agent) is a potential weakness of the modern corporate form. Various monitoring mechanisms—pay for performance compensation schemes, mix of cash compensation and long term compensation, the independence of the board of directors, the market for takeovers, and capital structure—have been developed to discipline management and motivate them to maximize shareholder wealth. We test the hypothesis that dividend payout levels reflect the quality of and motivation for managerial decision making and are a function of performance and monitoring effectiveness. Consistent with this hypothesis, our analyses indicate that dividend payout, and dividend yield are functions of corporate performance, board structure, CEO tenure, and CEO ownership of company shares.     

The Other Side of Value: The Effect of Quality on Price and Return in Real Estate

We examine the effect of quality on price and return in real estate. Quality real estate stocks generally trade at higher prices. However, similar to findings in the aggregate stock market (Asness et al. 2013), quality in listed real estate is not fully reflected in price. A long quality, short junk portfolio (QMJ) is found to produce average risk-adjusted returns of 3.6 % per quarter (14.4 % annually). QMJ has a significantly positive coefficient when added as a dependent variable to a 4-factor model explaining U.S. real estate excess returns, including market, size, value and momentum factors, and leads to a small improvement in the overall fit of the model. Further investigation of the components of quality shows that profitability has a consistently positive relationship with real estate excess returns, while higher dividend payout is consistently associated with lower returns, in contrast to findings for conventional firms.     

Male wages and female welfare: private markets, public goods, and intrahousehold inequality

We show how an apparently welfare improving phenomenon likean increase in the wage of the male member of a family can resultin a seemingly paradoxical result where the entire family isworse off. There is male and female specialization in activitiessuch that the female member is involved in a community levelpublic good. A rise in the male wage leads to adjustment ofhousehold time allocation with the male working more in themarket and less on household activities. In turn, the femaleworks more on household activities and less on the communitypublic good, failing to internalize the negative externalityimposed on other members of the community. Under quite generalconditions the implied negative effect can more than offsetthe positive effect of the male wage raise, and the entire familyis worse off. The theoretical results are consistent with empiricalfindings in the literature.     

The promise (and pitfalls) of ICT for agriculture initiatives

The widespread growth of information and telecommunication technologies (ICTs) in rural areas of developing countries offers new opportunities to provide more timely and low‐cost information services to farmers, as well as assist in coordinating agricultural agents. Over the past decade, the number of public and private sector initiatives in this space has increased substantially, with over 140 deployments worldwide in 2015. While there is substantial potential for such services to address farmers’ and traders’ information and credit market constraints, economic research suggests that the impacts of such services on agricultural adoption, behavior and welfare is mixed. While this can, in part, be explained by the degree of the information asymmetry and the presence of other market failures in different contexts, research from other disciplines provides additional insights into these findings. In particular, work in the domain of human–computer interaction (HCI) focuses heavily on users’ interaction and experience with a given technology, thus explaining why users may not fully engage with ICT‐based agricultural interfaces. Furthermore, sociological and anthropological approaches study the provision of information and trust and how these may be altered by ICT platforms. Drawing upon these disciplines, we suggest that future ICT for agriculture initiatives should first seek to better understand the information and complementary market failures in a given context, in order to better understand whether information is a binding constraint. Second, even if information is missing, the information services provided should be of high quality and from a trusted source, which can be a challenge with some ICT platforms. Finally, such services should be delivered via platforms that build upon local ICT access and usage, paying particular attention to the gender digital divide.     

A note on the foreign exchange market efficiency hypothesis

This paper examines the weak and strong forms of the foreign exchange market efficiency hypothesis (MEH) (as defined in the paper) using the recently available Harris-Inder null of cointegration procedure, which is powerful enough to distinguish between cointegration and near cointegration, and thus provide more robust results than conventional cointegration tests. Our results indicate that both forms of the MEH are rejected for all the major currencies of the European Economic Community (EEC). (JEL F310).     

Spread behavior around board meetings for firms with concentrated insider ownership

For a set of firms with concentrated insider ownership, we find that (a) the bidask spread changes significantly around the board meeting dates, and (b) the actual number of transactions by insiders increases following the board meetings. We also find that there is a statistically significant relationship between spread and the number of insider trades surrounding the board meeting dates. Furthermore, neither an increase in the number of insider transactions nor any significant relationship between insider trading and the spread is observed for the same set of firms around non-board meeting dates.     

IPOs,clustering, indirect learning and filing independently

IPO underpricing has been attributed to valuation uncertainty, which can be at least partially resolved by the indirect learning associated with IPO clustering [Benveniste, L.M., Ljungqvist, A., Wilhelm, W.J., Yu, X.Y., 2003. Evidence of information spillovers in the production of investment banking services. Journal of Finance 58, 577–608]. We examine why firms might choose not to issue their IPOs contemporaneously with clusters of similar firms, forgoing opportunities to learn from their peers. We find that the willingness to file an IPO without the benefit of indirect learning from peer firm IPOs is directly related to insiders’ needs for portfolio diversification and the firm’s need to raise capital.