scholarly journals Impact of Initial Planting Density on the Optimal Economic Rotation of Chinese Fir (Cunninghamia lanceolata (Lamb.) Hook) in an Experimental Forest Plantation

Forests ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 713
Author(s):  
Lin Liu ◽  
Yan Li ◽  
Jianguo Zhang ◽  
Honggang Sun
Keyword(s):  
Growth Rate ◽  
Discount Rate ◽  
Negative Impact ◽  
Cunninghamia Lanceolata ◽  
Planting Density ◽  
Stand Age ◽  
Stand Volume ◽  
The Difference ◽  
The Impact ◽  
Diameter Classes

The amount to be invested and the timing of clearcutting are central concerns in timber production. To assess the impact of the initial planting density on optimal economic rotation, we explicitly included the distribution of stand diameter classes and price differences representing the quality of stumpage in a model of forest land expected value (LEV). We selected five initial planting densities of 35-year old China fir (Cunninghamia lanceolata (Lamb.) Hook) plantations to fit the distribution of diameter classes along with stand age using a three-parameter Weibull theoretical growth model and then the Faustmann formula was used to calculate LEVs under different conditions. We found that the difference in the values of the growth rate of the stand volume and the discount rate affected the direction of the impact of initial planting density on the optimal economic rotation. If the value of the growth rate of the stand volume exceeded that of the discount rate, then the initial planting density had a negative impact on optimal economic rotation and vice versa. In addition, the quality effect, which means the shift in diameter class to a higher value attributed to the initial planting density, determined the extent of the impact of the initial planting density on the optimal economic rotation. The proportion of large-sized timber increased at a faster pace in accordance with the age of the stand in stands where the planting density was low compared with the proportion of such timber in stands with a higher initial planting density. The corresponding net stumpage price difference resulted in significant differences in LEVs. We concluded that a low-density stand of China fir was a preferred planting option for obtaining the highest LEV.

scholarly journals The Role of Internal Control in Firms’ Coping with the Impact of the COVID-19 Pandemic: Evidence from China

2021 ◽  
Vol 13 (11) ◽  
pp. 6294
Author(s):  
Peiqing Zhu ◽  
Jianbo Song
Keyword(s):  
Internal Control ◽  
Manufacturing Industry ◽  
Firm Heterogeneity ◽  
Negative Impact ◽  
Risk Prevention ◽  
High Tech ◽  
Obvious Effect ◽  
The Difference ◽  
The Impact

Internal control plays a role in risk prevention for firms when dealing with serious emergencies, which ensures the sustainable development of firms during a crisis. Based on the rapid outbreak of COVID-19 in China, this paper empirically tests whether internal control alleviates the negative impact of the pandemic on firm performance. Using a sample of Chinese listed firms from the first quarter of 2019 to the third quarter of 2020 and employing the difference-in-difference (DID) method, we find that the firms with a higher quality of internal control achieve better financial performance during the pandemic period; the more serious the pandemic is, the more obvious effect internal control plays. Furthermore, we consider the industry heterogeneity and firm heterogeneity of the risk resistance effect of internal control. In the manufacturing industry, which is a “disaster zone” of the pandemic, and the non-high-tech industry with a low degree of digitization, internal control can play a more important role in firms’ performance. Moreover, for state-owned enterprises, and firms with strong financing constraints, the role of internal control is more prominent. The above results provide empirical evidence for the risk prevention function of internal control and shed new light on the measures for firms to resist emergencies in the future.

scholarly journals The Impact of the Capture of Leaders of Criminal Organizations on the Labor Market: Evidence from Mexico

2021 ◽  
Author(s):  
Daniel Osuna Gómez ◽  
Keyword(s):  
Labor Market ◽  
Census Data ◽  
Negative Impact ◽  
Difference Analysis ◽  
Criminal Organizations ◽  
Before And After ◽  
Economic Census ◽  
The Difference ◽  
Integral Assessment ◽  
The Impact

This paper estimates the impact of the capture of leaders of criminal organizations on the labor market in municipalities where these organizations operated between 2004 and 2006. The difference-in-difference analysis compares different employment outcomes in cartel locations and the rest, before and after the capture of cartel leaders. The results show that captures caused a decrease in nominal wages and paid employment in cartel municipalities. Using Economic Census Data, I find that captures also caused a fall in the number of establishments and had a negative impact on other establishment outcomes. This document focuses exclusively on the impact of the capture of leaders of criminal organizations on the labor market until 2011 without studying other possible consequences, and thus does not make an integral assessment of this policy

Impact of the COVID-19 Outbreak on the Currency Exchanges of Selected Countries

2022 ◽  
Vol 14 (2) ◽  
pp. 73-91
Author(s):  
Sudhi Sharma ◽  
Miklesh Prasad Yadav ◽  
Babita Jha
Keyword(s):  
Growth Rate ◽  
Negative Impact ◽  
Annual Growth ◽  
Conditional Heteroskedasticity ◽  
Annual Growth Rate ◽  
Dummy Variable ◽  
Currency Market ◽  
Autoregressive Conditional Heteroskedasticity ◽  
The Impact

The paper aims to analyse the impact of the COVID outbreak on the currency market. The study considers spot rates of seven major currencies (i.e., EUR/USD, USD/JPY, GBP/USD, AUD/USD, USD/CAD, USD/CHF, and CHF/JPY). To capture the impact of the outbreak on returns and the volatility of returns of seven currencies during pandemic, the study has segregated in two window periods (i.e., pre- [1st Jan 2019 to 31st Dec, 2019] and post-outbreak of COVID-19 [1st Jan, 2020 to 22nd Dec, 2020]). The study has applied various methods and models (i.e., econometric-based compounded annual growth rate [CAGR], dummy variable regression, and generalized autoregressive conditional heteroskedasticity [GARCH]). The result of the study captures the negative impact of the COVID-19 pandemic on three currencies—USD/JPY, AUD/USD, and USD/CHF—and positive significant impact on EUR/USD, GBP/USD, USD/CAD, and CHF/JPY. Investors can take short position in these while having long position in other currencies. The inferences drawn from the analysis are providing insight to investors and hedgers.

scholarly journals Quality of Life in Patients with Psoriasis Seen in the Department of Dermatology, Antananarivo, Madagascar

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Fandresena Arilala Sendrasoa ◽  
Naina Harinjara Razanakoto ◽  
Volatantely Ratovonjanahary ◽  
Onivola Raharolahy ◽  
Irina Mamisoa Ranaivo ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Negative Impact ◽  
Young Patients ◽  
The Body ◽  
University Hospital ◽  
Medical Decision ◽  
Cross Sectional ◽  
The Difference ◽  
The Impact

Background. Psoriasis is a chronic, inflammatory, and multifactorial dermatosis that impairs quality of life (QoL). Health-related QoL has become an important element in medical decision-making along with the effectiveness and the harmlessness of the treatments. Objective. To assess the impact of psoriasis in the QoL of patients with psoriasis by using the DLQI scales. Methods. A cross-sectional study from January to June 2018 was conducted in the Department of Dermatology of the University Hospital Joseph Raseta Befelatanana, Antananarivo, Madagascar, including patients more than 18 years old with mild to severe psoriasis. The severity of psoriasis was assessed using the “Psoriasis Area and Severity Index (PASI)”. QoL of patients with psoriasis was evaluated by using the DLQI scales. Results. 80 patients were included, their mean age was 36.5 years, and the male to female was 1.5 : 1. The mean DLQI score was 13.8. Symptoms, feelings, and psychic were the most altered dimensions. QoL was impaired in young patients, single, having medium level education. Even though patients with disease duration more than 5 years had higher DLQI score than other patients, the difference was not statistically significant (p=0.36). Furthermore, the clinical presentation of psoriasis did not influence the patient’s QoL (p=0.73). Patients with nail involvement had QoL impaired but the difference with another localization was not statistically significant (p=0.2). The quality of life was influenced by body area involved. The higher the body surface area involved, the more QoL is impaired (p=0.002). Furthermore, the higher the PASI, the more QoL is altered (p=0.002). Conclusion. Psoriasis has a negative impact in the quality of life in Malagasy patients with psoriasis, especially in younger and single patients. Worse quality of life is correlated to severity of psoriasis.

The Price-Size Curve and Planting Density Decisions

1992 ◽  
Vol 16 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Jon P. Caulfield ◽  
David B. South ◽  
Greg L. Somers
Keyword(s):  
Sensitivity Analysis ◽  
Discount Rate ◽  
Site Index ◽  
Planting Density ◽  
Tree Crop ◽  
Size Relationship ◽  
The Impact

Abstract The planting density decision is influenced by the price-size relationship existing between the tree crop grown and the products sold. Several price-size curves are presented, and their impact on the optimal economic planting density is evaluated. Results indicate that when the price-size curve is upward sloping, fairly low planting densities may be appropriate. Higher densities apply when the price-size curve is flat. Sensitivity analysis is carried out to evaluate the impact of changing site index and discount rate on the density decision. South. J. Appl. For. 16(1):24-29.

scholarly journals FEDs Impact On The Value Of Dollar Through Interest Rates

2011 ◽  
Vol 10 (1) ◽  
pp. 45
Author(s):  
Guclu Atinc ◽  
Yasmine Ocal Atinc ◽  
Matthew Uwakonye
Keyword(s):  
Interest Rates ◽  
Discount Rate ◽  
Negative Impact ◽  
Federal Funds ◽  
Federal Funds Rate ◽  
Negative Effect ◽  
Prime Rate ◽  
The Impact

In this study we aimed to demonstrate how the actions of FED indirectly impact the value of American dollar. We specifically hypothesized that when FED encourages banks to borrow more from each other by holding the discount rate higher than the federal funds rate then this should have a negative impact on the value of dollar and also subsequent higher spread between federal funds rate and prime rate. We also hypothesized that as this spread gets larger a subsequent depreciation in dollars value and negative effect on unemployment should be observed. Although we were unable to demonstrate the impact when the spread between the prime rate and federal funds rate is considered, our results show that when FED encourages banks to borrow from each other by holding the discount rate higher than the federal funds rate, the American dollar goes down in value and corresponding larger difference between federal funds rate and prime rate is observed.

scholarly journals One Laptop per Child? Using Production Frontiers for Evaluating the Escuela 2.0 Program in Spain

Mathematics ◽  
2021 ◽  
Vol 9 (20) ◽  
pp. 2600
Author(s):  
Daniel Feliciano ◽  
Laura López-Torres ◽  
Daniel Santín
Keyword(s):  
Information And Communication Technologies ◽  
Group Performance ◽  
Negative Impact ◽  
Methodological Approach ◽  
Malmquist Index ◽  
The Difference ◽  
Inference Techniques ◽  
The Impact ◽  
Base Group ◽  
Production Frontiers

Over the last few decades, public programs have driven the gradual adoption of information and communication technologies (ICTs) in education. The most ambitious project in Spain so far was Escuela 2.0, which provided students from the regions that opted into the program with laptops. The objective of this paper is to evaluate the impact of this program on school performance and productivity. To do this, we developed a new methodological approach based on combining causal inference techniques and the analysis of production frontiers. We calculated the differences in productivity and performance between treated and control schools using the base-group Camanho–Dyson Malmquist index and the base-group performance gap index. We estimate the impact of the program as the variation of these differences, following the essence of the difference-in-differences analysis. The main results are that Escuela 2.0 had a negative impact on performance and productivity.

scholarly journals effects of COVID-19 Pandemic on the Psyche and Productivity of Pharmaceutical Sales Workforce in an African Country; A descriptive case study

2021 ◽  
Vol 8 (5) ◽  
pp. 586-604
Author(s):  
Theophilus Ehidiamen OAMEN
Keyword(s):  
Negative Impact ◽  
Demographic Data ◽  
Primary Objective ◽  
Sales Representatives ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Pharmaceutical Sales ◽  
Daily Work ◽  
The Difference ◽  
The Impact

Pharmaceutical sales representatives are a pivotal workforce in the healthcare system. Due to the global impact of COVID-19, the impact on the psyche and morale of the pharmaceutical sales workforce has to be examined. The primary objective of the study was to assess the possible impact of the COVID-19 pandemic on the psyche and productivity of the pharmaceutical sales workforce in Nigeria. A questionnaire-guided cross-sectional survey was used to collect data from pharmaceutical sales personnel across the six geopolitical zones in Nigeria using purposive sampling. The final sample was 225. Statistical analysis was done using SPSS 25. Descriptive statistics such as mean, standard deviation were used for demographic data. Cluster analysis was used to identify key demographic predictors of importance. X2 test was used to test the association between the sociodemographic characteristics of respondents and work-attributes. The difference of means was determined with a t-test. Highest and lowest-ranked work-attributes were information provider (3.62±1.36), and involvement in COVID screening activities (1.80±1.20). Average daily work hours before and during COVID-19 lockdown (2.16±0.04 vs. 1.88±0.11, p<0.05)) were affected. Average sales were significantly affected (3.15±0.48 vs. 1.35±0.36, p<0.0001). Psychological states of Anxiety and Increased burden have a medium to high impact on the psyche of respondents. The study revealed an association of both extremes of pessimism and optimism with regards to Frustration state of mind. Study suggests an overall negative impact on pharmaceutical sales representatives’ psyche and productivity. Attention to sales workforce welfare is required to safeguard medicine supply.

scholarly journals Impact of Non-Performing Loans on Credit Growth in the Banking Industry in Tanzania: 2009 – 2018

2021 ◽  
pp. 10-18
Author(s):  
John P. Lihawa ◽  
Deus D. Ngaruko
Keyword(s):  
Growth Rate ◽  
Regression Analysis ◽  
Private Sector ◽  
Interest Rates ◽  
Inflation Rate ◽  
Negative Impact ◽  
Gdp Growth ◽  
Credit Growth ◽  
Gdp Growth Rate ◽  
The Impact

This study adopted descriptive statistics and multiple regression analysis in investigating the impact of Non-Performing Loans (NPL) on credit growth to private sector in Tanzania, apart from NPL. The study also investigated the influence of interest rates, inflation rates and GDP on credit advancement to private sector in Tanzania. Using multiple linear regression analysis the study found that both NPL and interest rates have negative impact on the credit growth to private sector in Tanzania, with coefficient values of -0.323 and -0.263 for NPL and interest rate respectively. Furthermore, the study also found that Inflation rate and GDP growth rate have positive impact on the credit growth to private sector in Tanzania with coefficients of 0.247and 0.156 for inflation rate and GDP growth rate respectively. The study found that NPL has a significant negative impact on the credit growth by commercial bank to private sector in Tanzania. These results suggest that the central bank should continue to closely monitor and control the level of NPL in the economy and confine it below the threshold of 5% as stipulated by the BOT and IMF. The study also recommends that commercial banks should ensure that a thorough credit risk assessment is conducted when advancing loans to private sector.

scholarly journals The Impact Of Death Anxiety On Quality Of Life Among Cancer Patients: A Case Of Bahawalpur And Multan District

2021 ◽  
Vol 58 (1) ◽  
pp. 5473-5477
Author(s):  
Siraj Hussain Et al.
Keyword(s):  
Quality Of Life ◽  
Cancer Patients ◽  
Death Anxiety ◽  
Negative Impact ◽  
Sampling Technique ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
The Difference ◽  
The Impact

The current study aimed to carved the impact of death anxiety on quality of life among cancer patients. The study focused to find out the difference of death anxiety in the context of gender and socio-demographic factors; and to seek out the impact of death anxiety on the quality of life of cancer patients. Purposive sampling technique was opted to collect the N= 110 cancer patients from Victoria hospital Bahawalpur and the Minar hospital Multan though the cross-sectional survey research design. The instrument was adopted from Lemming fear of death anxiety scale and WHOQOL. To cognizant the study Correlation t-test was computed which put forth that women cancer patients have a positive correlation between death anxiety and the quality of life.  The conclusion is there is an impact of death anxiety on quality of life among patients who were hospitalized. Death anxiety has a negative impact on quality of life among cancer patients. Patients both male and female experience death anxiety at a certain level that may impact their quality of life, cancer patients who were hospitalized they have more death anxiety than other cancer patients. Septate Psychological counseling sessions can assist to decline the death anxiety among cancer patients.

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