The impact of policy timing on the spread of COVID-19

We model COVID-19 data for 89 nations and US states with a formalism that describes mathematically any pattern of growth with the minimum number of parameters (Elitzur, Kaplan & Zilberman, 2020), looking for correlations between "flattening of the curve" and preventive public policies. We find strong statistical evidence for the impact of the first implemented policy on decreasing the pandemic growth rate. Lockdown was not the first policy of any sample member, and we do not find statistically meaningful evidence for its added impact. A recent study (Brauner et al, 2020) reached similar conclusions from an entirely different approach. However, lockdown was mostly imposed only shortly before the exponential rise was arrested. The possibility remains that lockdown might have shortened significantly the initial exponential phase had it been employed as first, rather than last resort.

Pengaruh Gaya Kepemimpinan Dan Komitmen Organisasi Terhadap Kepuasan Kerja Serta Dampaknya Terhadap Kinerja Pegawai Pada Kantor Dinas Kependudukan Dan Pencatatan Sipil Kota Jambi

The purpose of this research is to find out the description of leadership style, organizational commitment, performance and job satisfaction at the Office of the Office of Population and Civil Registry of Jambi City year 2019. To analyze the influence of leadership style and organizational commitment simultaneously and partially both directly and indirectly to job satisfaction at the Office of the Office of Population and Civil Registry of Jambi City year 2019. To analyze the influence of leadership style and organizational commitment simultaneously and partially both directly and indirectly on performance at the Office of The Office of Population and Civil Registry of Jambi City in 2019 and to analyze the influence of leadership style and employee commitment through job satisfaction to performance at the Office of The Office of Population and Civil Registry of Jambi City year 2019. The population of this study was all employees of the Jambi City Civil Registry and Population Office as many as 95 people. The population has a close relationship with the problems studied. Samples are part of the elements of the population to be examined. In this study, probability sampling techniques were used because the population in this study was not very large. Probability sampling is a sampling technique that provides an opportunity for each member of the population to be selected as a sample member. With probability sampling, it is random or random sampling of the existing population. The sample from this study was all employees of the Jambi City Office of Population and Civil Registry as many as 95 people. The leadership style and commitment of the organization simultaneously has a positive and significant influence on job satisfaction in employees of the Office of Population and Civil Registry of Jambi City. Where the influence of leadership style and simultaneous organizational commitment to job satisfaction simultaneously is worth 40.68%. Leadership style and organizational commitment through performance can have a direct and indirect effect on job satisfaction. Where the influence of leadership style on job satisfaction through performance is 14.94%, the effect of orgnaization commitment on job satisfaction through performance of 1.82% and leadership style and organizational commitment together through performance to job satisfaction is 19.97%.

The Action Structure of Recruitment Calls and Its Analytic Implications: The Case of Disfluencies

We describe interviewers’ actions in phone calls recruiting sample members. We illustrate (1) analytic challenges of studying how interviewers affect participation and (2) actions that undergird the variables in our models. We examine the impact of the interviewer’s disfluencies on whether a sample member accepts or declines the request for an interview as a case study. Disfluencies are potentially important if they communicate the competence or humanity of the interviewer to the sample member in a way that affects the decision to participate. Using the Wisconsin Longitudinal Study, we find that although as they begin, calls that become declinations are similar to those that become acceptances, they soon take different paths. Considering all recruitment actions together, we find that the ratio of disfluencies to words does not predict acceptance of the request for an interview, although the disfluency ratio before the turning point – request to participate or a declination – of the call does. However, after controlling for the number of actions, the disfluency ratio no longer predicts participation. Instead, when we examine actions before and after the first turning point separately, we find that the number of actions has a positive relationship with participation before and a negative relationship after.

PENGARUH GAYA KEPEMIMPINAN TERHADAP KINERJA KARYAWAN DAN DAMPAKNYA TERHADAP LOYALITAS KARYAWAN

The research aims to analyze empirical evidence of the influence of leadership style on employee performance and its impact on employee loyalty on PT. Fastrata Buana Branch Pulogadung. Samples obtained by 187 respondents, sample retrieval techniques using purposive sampling, namely sample retrieval techniques that provide equal opportunities for each element (member) of the population to be selected to be a sample member. Data collection techniques using questionnaires, data analysis techniques used are validity and reliability. The results of this study show that there is a positive and significant influence between leadership styles and on employee performance, leadership styles have positive and significant influence on employee loyalty, employee performance has positive and significant influence on employee loyalty, as well as a positive and significant influence between leadership styles on employee loyalty through employee performance

KEPUASAN PELANGGAN MEMEDIASI HUBUNGAN STORE IMAGE DAN EKSPEKTASI PELANGGAN TERHADAP LOYALITAS PELANGGAN

Store image is the combination of all customers’ attitude about a store or a company which is connected to the customers’ expectation when they choose where to shop. By designing a place to be attractive and by focusing to fulfill customers’ needs and satisfaction to shop, so that it will create a good image in the customers’ mind which is one of the elements of the store image and it will make customers’ love to shop at the first sight, therefore, a good image will be in the customers’ mind and later will create a satisfaction to that particular store. The populations in this research are customers at Carrefour Ngagel Surabaya with the minimum of 2 times to shop in the last 3 month (July, August and September 2010). Sample technique is non random sampling by using Purposive Sampling that is the sample member is determined by certain characters based on the relationship that has connected with the population characteristics. Data analyzes in this research is using Structural Equation Modeling (SEM). Based on the research, it is said that store image is influencing to the customers’ satisfaction to the customers at Carrefour Ngagel Surabaya. Customers’ expectation is influencing customers’ satisfaction at Carrefour Ngagel Surabaya. Store image doesn’t influence customers’ loyalty at Carrefour Ngagel Surabaya. Customers’ expectation is influencing customers’ loyalty at Carrefour Ngagel Surabaya. Customers’ satisfaction is influencing customers’ loyalty at Carrefour Ngagel Surabaya. Store image and customers’ expectation are significantly influence the customers’ loyalty with the customers’ satisfaction as mediation variable at Hypermart Carrefour Ngagel Surabaya.

Vocational Adjustment Level of Employees at Irbid University College

The current study aimed to detect the vocational adjustment level of employees at Irbid University College, and to achieve this goal the study tool; vocational adjustment measurement was developed by the researcher and implemented, after confirming its constancy, stability, and truthfulness, which consist of (36) paragraphs spreading over four dimensions (The reality of work climate, physical income, relationship with co-workers, and relationship with management) on the study populations which consist of (141) employees, and the respondents of (121) of those were subject to the statistical analysis. The study results showed the overall vocational adjustment level of employees at Irbid University College to be medium, where all the dimensions came at medium level, in the order (The reality of working climate, physical income, relationship with coworkers, and relationship with management). The study results also showed the existence of statistically significant difference at level (α = 0.05) between the two arithmetic means of study sample member estimates on all dimensions of vocational adjustment measurement, and on it all together, due to the sex variable, and in favor of males, and the existence of statistically significant difference at level (α = 0.05) between the two arithmetic means of study sample member estimates on all dimensions of vocational adjustment measurement, and on it all together, due to the years of experience variable, and in favor of employees with years of experience of (10 years or more), and also the non- existence of statistically significant difference at level (α = 0.05) between the two arithmetic means of study sample member estimates on all dimensions of vocational adjustment measurement, and on it all together, due to the interaction between the two variables of sex and years of experience.

More Data or Better Data? A Statistical Decision Problem

When designing data collection, crucial questions arise regarding how much data to collect and how much effort to expend to enhance the quality of the collected data. To make choice of sample design a coherent subject of study, it is desirable to specify an explicit decision problem. We use the Wald framework of statistical decision theory to study allocation of a budget between two or more sampling processes. These processes all draw random samples from a population of interest and aim to collect data that are informative about the sample realizations of an outcome. They differ in the cost of data collection and the quality of the data obtained. One may incur lower cost per sample member but yield lower data quality than another. Increasing the allocation of budget to a low-cost process yields more data, while increasing the allocation to a high-cost process yields better data. We initially view the concept of “better data” abstractly and then fix attention on two important cases. In both cases, a high-cost sampling process accurately measures the outcome of each sample member. The cases differ in the data yielded by a low-cost process. In one, the low-cost process has non-response and in the other it provides a low-resolution interval measure of each sample member’s outcome. In these settings, we study minimax-regret sample design for prediction of a real-valued outcome under square loss; that is, design which minimizes maximum mean square error. The analysis imposes no assumptions that restrict the unobserved outcomes. Hence, the decision maker must cope with both the statistical imprecision of finite samples and the partial identification of the true state of nature.

KEPUASAN PELANGGAN MEMEDIASI HUBUNGAN STORE IMAGE DAN EKSPEKTASI PELANGGAN TERHADAP LOYALITAS PELANGGAN

Store image is the combination of all customers’ attitude about a store or a company which is connected to the customers’ expectation when they choose where to shop. By designing a place to be attractive and by focusing to fulfill customers’ needs and satisfaction to shop, so that it will create a good image in the customers’ mind which is one of the elements of the store image and it will make customers’ love to shop at the first sight, therefore, a good image will be in the customers’ mind and later will create a satisfaction to that particular store. The populations in this research are customers at Carrefour Ngagel Surabaya with the minimum of 2 times to shop in the last 3 month (July, August and September 2010). Sample technique is non random sampling by using Purposive Sampling that is the sample member is determined by certain characters based on the relationship that has connected with the population characteristics. Data analyzes in this research is using Structural Equation Modeling (SEM). Based on the research, it is said that store image is influencing to the customers’ satisfaction to the customers at Carrefour Ngagel Surabaya. Customers’ expectation is influencing customers’ satisfaction at Carrefour Ngagel Surabaya. Store image doesn’t influence customers’ loyalty at Carrefour Ngagel Surabaya. Customers’ expectation is influencing customers’ loyalty at Carrefour Ngagel Surabaya. Customers’ satisfaction is influencing customers’ loyalty at Carrefour Ngagel Surabaya. Store image and customers’ expectation are significantly influence the customers’ loyalty with the customers’ satisfaction as mediation variable at Hypermart Carrefour Ngagel Surabaya

Panel Attrition: How Important is Interviewer Continuity?

We assess whether the probability of a sample member cooperating at a particular wave of a panel survey is greater if the same interviewer is deployed as at the previous wave. Previous research on this topic mainly uses nonexperimental data. Consequently, a) interviewer change is generally nonrandom, and b) continuing interviewers are more experienced by the time of the next wave. Our study is based on a balanced experiment in which both interviewer continuity and experience are controlled. Multilevel multiple membership models are used to explore the effects of interviewer continuity on refusal rate as well as interactions of interviewer continuity with other variables. We find that continuity reduces refusal propensity for younger respondents but not for older respondents, and that this effect depends on the age of the interviewer. This supports the notion that interviewer continuity may be beneficial in some situations, but not necessarily in others.