Hasil untuk "Economics as a science"

Ігор Бурачек, Людмила Горшкова, Діна Ярмолюк

Стаття присвячена актуальному питанню, що стосується проблем і перспектив розвитку готельного господарства в Україні. Проведено аналіз сучасного стану індустрії гостинності в країні, на основі якого змогли визначити проблеми, окреслити способи їх вирішення, що дозволить сприяти вдосконаленню готелю, як організації та персоналу, який задіяний в цій сфері. Вивчення проблем підприємств індустрії гостинності є ключовим предметом дослідження науки і щоденної практичної діяльності на підприємствах. У своїй основі, це несе в собі великі потенційні можливості підвищення ефективності національної економіки і соціальних результатів функціонування робочої сили і техніко-технологічних засобів виробництва. Також в статті дано опис стану готельного бізнесу під час пандемії та війни: оцінюється стан готельних підприємств та запропоновано шляхи для відновлення сфери гостинності. Реалізація планів щодо відновлення і активізації готельного бізнесу може призвести до підйому економіки України, дозволить підвищити можливості розвитку персоналу та підвищить продуктивність роботи в закладі. Це позитивно вплине на сприйняття зовнішніми партнерами України на міжнародному ринку послуг.

Mahdi Salehi, Grzegorz Zimon, Maryam Seifzadeh

The present study investigates the relationship between management characteristics (managerial entrenchment, CEO narcissism, overconfidence, board effort, real and accrual-based earnings management) and the audit report readability of listed firms. In other words, this paper seeks to answer the question of “whether management characteristics can have a favourable effect on the audit report readability or not.” The multivariate regression model is used for this study. Research hypotheses were also examined using a sample of 1004 observations on the Tehran Stock Exchange during 2012–2018 and by employing multiple regression patterns based on a panel data technique and fixed effects model. The results show a negative and significant relationship between managerial entrenchment and real and accrual-based earnings management and the audit report readability, based on the FOG index, and a positive and significant relationship between management narcissism, CEO overconfidence, and board effort and the audit report readability, based on the FOG index. Moreover, a negative and significant relationship exists between management entrenchment, CEO overconfidence, real and accrual-based earnings management, and audit report readability based on text length and Flesch indices. A positive and significant relationship was evident between CEO narcissism and board effort and audit report readability based on the same indices. Besides, research models were also examined for more confidence using other additional methods, including FE, T + 1, ABB, and GMM, which confirm the study’s preliminary results. Since the present study is the first paper to investigate such a topic in the emergent markets, it provides valuable information about intrinsic and acquisitive characteristics of management for users, analysts, and legal institutions that contribute significantly to financial statement readability.

Chetrine Alya Rinaima

The research in this article aims to analyze the health of the company, precisely at PT BCA Syariah Tbk and analyze the existence of financial distress to determine whether there is a potential for bankruptcy. The method used is descriptive quantitative method, using data from the 2020 BCA Syariah Financial Report and the report of self-assessment published 2016-2020 GCG. The data analysis technique used the RGEC method which resulted in a conclusion that the health condition of BCA Syariah was in a healthy condition. However, BCA Syariah needs to pay attention to maximizing net profit every year and to maximize financial performance, because the ROE value shows a low number from year to year. Meanwhile, the potential for financial distress in 2016-2020 using the Springate method produces a number above 1.062 and when tested using the Grover method, it produces a result of more than -0.02. In both calculations, it can be concluded that BCA Syariah does not have the potential for bankruptcy.   Penelitian pada artikel ini bertujuan untuk menganalisa kesehatan perusahaan, tepatnya pada PT BCA Syariah Tbk serta menganalisa adanya financial distress untuk mengetahui ada tidaknya potensi kebangkrutan. Metode yang dipakai adalah dengan menggunakan metode deskriptif kuantitatif, dengan menggunakan data Laporan Keuangan BCA Syariah 2020 serta laporan self-assessment GCG Tahun 2016-2020 yang telah dipublikasikan. Teknik analisa data mengguanakan metode RGEC yang menghasilkan sebuah kesimpulan bahwa kondisi kesehatan BCA Syariah berada pada kondisi sehat. Namun, BCA Syariah perlu memperhatikan pemaksimalan laba bersih setiap tahunnya serta meningkatkan kinerja keuangan lebih maksimal, karena nilai ROE menunjukkan angka yang rendah dari tahun ke tahun. Sedangkan pada potensi financial distress pada tahun 2016-2020 menggunakan metode Springate menghasilkan angka diatas 1,062 dan ketika diuji menggunakan metode Grover menghasilkan hasil lebih dari -0,02. Pada kedua perhitungan tersebut dapat disimpulkan bahwa BCA Syariah tidak memiliki potensi kebangkrutan.

Roman Zakharenko

Otilia Georgiana Floroiu

All countries that joined the European Union are obligated to adopt the euro currency, except for Denmark that benefits from an opt-out clause. Presently, there are eight EU Member states that are not part of the euro zone: Bulgaria, Croatia, Czechia, Denmark, Hungary, Poland, Romania, and Sweden. The national authorities are free to choose the time of accession and this prerogative allows some states to postpone by not entering the ERM II mechanism. But there are also countries who are severely struggling to meet the economic convergence levels. The degree of economic convergence is analyzed by the European Commission through Flash Eurobarometer surveys every two years. The purpose of this paper is to compare the 2018 Eurobarometer results with our own findings from December 2019, for a total of four countries: Romania, Poland, Hungary, and the Czech Republic.

Alina Florentina Saracu, Maria Smochina

The study of this article intends to study the performances in sustainable rural development in Romania with focus on the main fields in the rural sector, between 2014-2018. Using the econometric tool, we prove the dynamics of sustainable rural development on economic growth in Romania, so as to subsequently demonstrate which are the most effective strategies meant to stimulate the development of this sector. Therefore, sustainable rural development is the motion with the purpose to progress and endow the region, without achieving urban expansion, while preserving the traditional specificity of rural culture. The progress of this sector is a significant component in the modernization of the state economy, contributing to its proper functioning based on the market economy principles. This process contributes to increasing the level of agri-food production, the complex improvement of the national economy, as well as to the sustainable growth of the regions or the resolution of social dilemmas.

LHCb Collaboration, R. Aaij, B. Adeva et al.

Using $pp$ collisions corresponding to 3$\,\text{fb}^{-1}$ integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8$\,\text{TeV}$, the ratio of branching fractions \begin{align*} \mathcal{B}(Λ^0_b\!\toψ(2S) Λ)/\mathcal{B}(Λ^0_b\!\to J/ψΛ)= 0.513 \pm 0.023\, (\text{stat}) \pm 0.016 \, (\text{syst}) \pm 0.011\, (\mathcal{B}) \end{align*} is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.

Бибосынова Ж. А.

In this article practical aspects of using project management in popular restaurants of different countries are considered. Within the framework of this study, the experience of using the Hard Rock Cafe project management tools is highlighted. It is noted that the management of the project in Hard Rock Cafe includes three phases: planning, setting goals, defining the project and organizing the team; drawing up of a calendar schedule of works; control. Considered the project of opening a new restaurant from Pizza Duono (Italy). It stands out that in this restaurant project managers are in sight, they are responsible for: all necessary activities have been completed in the right sequence and on time; the project did not go beyond the budget; the project would meet the quality standards, etc. The study also examined an example of project caching to change the project completion time from the restaurant Pizza Duono (Italy, Rome). According to the methodology of this restaurant, on each of the critical paths the restaurant must identify one type of activity that can be subjected to crashing.

Kiumars shahbazi, zhila saleki

The main objective of this study is to investigate the effects of life and non-life insurance on economic growth in Iran. To this end, the smooth transition regression (STR) model was used by gathering data on life and non-life insurance penetration, active population and gross fixed capital formation during 1947-2014. The results confirmed the non-linear effects of life and non-life insurance penetration rates on economic growth in Iran. Also, the logistic transfer function with two regime changes (LSTR2) was identified for both variables, and the life insurance penetration rate was selected as the appropriate transition variable. Thus, the regime has changed twice in the Iranian insurance industry. At %1 level of significance, the effectiveness of life insurance penetration rate in linear and non-linear parts of the model was -0.13 and -0.39, respectively. In addition, the effectiveness of non-life insurance penetration rate in the linear part of the model was 0.08 at %10 level of significance, while its effectiveness in the non-linear part was 0.52 in %1 level of significance. Since 2009, when the second regime change occurred for the total insurance industry, the negative effectiveness of life insurance penetration rate and positive effectiveness of non-life insurance penetration rate have been decreasing 3 times and 6 times, respectively. Therefore, the planning of the Iranian insurance industry is improving towards the global average performance, which means the increasing demand for life insurance. In addition, at %1 level of significance, the linear effectiveness of active population and gross fixed capital formation are estimated 1.02 and 0.24, respectively.

Nicholas Primachev, Tatyana Frasinyuk

The article presents the results of a systematic consideration of the complex issues of sustainable development of the national maritime transport subsystems in the global maritime transport industry. Particular attention is paid to the analysis of the real conditions of operation. There are feasible measures which should be taken to normalize the development of the national merchant fleet in order to achieve relative stability and to minimize the risk of losing the status of maritime power. Aspects of international administration in marine transport industry are highlighted in this article. The article deals with the scientific and methodological approaches to the choice of governance of economic and investment activity in the system of market relations.

Крамаренко Г.А., Костюк М.Г.

LHCb collaboration, R. Aaij, B. Adeva et al.

The suppressed decay $Λ^{0}_{b}\rightarrow pπ^{-}μ^{+}μ^{-}$, excluding the $J/ψ$ and $ψ(2S)\rightarrow μ^{+}μ^{-}$ resonances, is observed for the first time with a significance of 5.5 standard deviations. The analysis is performed with proton-proton collision data corresponding to an integrated luminosity of $3\mathrm{fb}^{-1}$ collected with the LHCb experiment. The $Λ^{0}_{b}\rightarrow pπ^{-}μ^{+}μ^{-}$ branching fraction is measured relative to the $Λ^{0}_{b}\rightarrow J/ψ(\rightarrow μ^{+}μ^{-})pπ^{-}$ branching fraction giving \begin{align} \nonumber \frac{\mathcal{B}(Λ^{0}_{b}\rightarrow pπ^{-}μ^{+}μ^{-})}{\mathcal{B}({Λ^{0}_{b}\rightarrow J/ψ(\rightarrow μ^{+}μ^{-})pπ^{-}})} &= 0.044\pm0.012\pm0.007, \end{align} where the first uncertainty is statistical and the second is systematic. This is the first observation of a $b\rightarrow d$ transition in a baryonic decay.

LHCb collaboration, R. Aaij, B. Adeva et al.

The $B^0$, $B^0_s$, $B^+$ and $Λ^0_b$ hadron production asymmetries are measured using a data sample corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected by the LHCb experiment in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The measurements are performed as a function of transverse momentum and rapidity of the $b$ hadrons within the LHCb detector acceptance. The overall production asymmetries, integrated over transverse momentum and rapidity, are also determined.

LHCb collaboration, R. Aaij, B. Adeva et al.

The ratio of branching fractions ${\cal{R}}(D^{*-})\equiv {\cal{B}}(B^0 \to D^{*-} τ^+ ν_τ)/{\cal{B}}(B^0 \to D^{*-} μ^+ν_μ)$ is measured using a data sample of proton-proton collisions collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3$~$fb$^{-1}$. The $τ$ lepton is reconstructed with three charged pions in the final state. A novel method is used that exploits the different vertex topologies of signal and backgrounds to isolate samples of semitauonic decays of $b$ hadrons with high purity. Using the $B^0 \to D^{*-}π^+π^-π^+$ decay as the normalization channel, the ratio ${\cal{B}}(B^0 \to D^{*-} τ^+ ν_τ)/{\cal{B}}(B^0 \to D^{*-}π^+π^-π^+)$ is measured to be $1.97 \pm 0.13 \pm 0.18$, where the first uncertainty is statistical and the second systematic. An average of branching fraction measurements for the normalization channel is used to derive ${\cal{B}}(B^0 \to D^{*-} τ^+ ν_τ) = (1.42 \pm 0.094 \pm 0.129 \pm 0.054) \%$, where the third uncertainty is due to the limited knowledge of ${\cal{B}}(B^0\to D^{*-}π^+π^-π^+)$. A test of lepton flavor universality is performed using the well-measured branching fraction ${\cal{B}}(B^0 \to D^{*-} μ^+ν_μ)$ to compute ${\cal{R}}(D^{*-}) = 0.291 \pm 0.019 \pm 0.026 \pm 0.013$, where the third uncertainty originates from the uncertainties on ${\cal{B}}(B^0 \to D^{*-}π^+π^-π^+)$ and ${\cal{B}}(B^0 \to D^{*-} μ^+ν_μ)$. This measurement is in agreement with the Standard Model prediction and with previous measurements.

LHCb collaboration, R. Aaij, B. Adeva et al.

A search for decays of $B_c^+$ mesons to two charm mesons is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV. The decays considered are $B_c^+\to D^{(*)+}_{(s)} \overline{D}^{(*)0}$ and $B_c^+\to D^{(*)+}_{(s)} D^{(*)0}$, which are normalised to high-yield $B^+\to D^+_{(s)} \overline{D}^0$ decays. No evidence for a signal is found and limits are set on twelve $B_c^+$ decay modes.

LHCb collaboration, R. Aaij, B. Adeva et al.

A search for the rare decay $Σ^+ \to p μ^+ μ^-$ is performed using $pp$ collision data recorded by the LHCb experiment at centre-of-mass energies $\sqrt{s} = 7$ and $8$ TeV, corresponding to an integrated luminosity of $3 fb^{-1}$. An excess of events is observed with respect to the background expectation, with a signal significance of 4.1 standard deviations. No significant structure is observed in the dimuon invariant mass distribution, in contrast with a previous result from the HyperCP experiment. The measured $Σ^+ \to p μ^+ μ^-$ branching fraction is $(2.2\,^{+\,1.8}_{-\,1.3})\times 10^{-8}$, where statistical and systematic uncertainties are included, which is consistent with the Standard Model prediction.

LHCb collaboration, R. Aaij, B. Adeva et al.

A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B^{0} \rightarrow K^{*0}μ^{+}μ^{-}$ and $B^{0} \rightarrow K^{*0}e^{+}e^{-}$ decays, $R_{K^{*0}}$, is presented. The $K^{*0}$ meson is reconstructed in the final state $K^{+}π^{-}$, which is required to have an invariant mass within 100$\mathrm{\,MeV}c^2$ of the known $K^{*}(892)^{0}$ mass. The analysis is performed using proton-proton collision data, corresponding to an integrated luminosity of about 3$\mathrm{\,fb}^{-1}$, collected by the LHCb experiment at centre-of-mass energies of 7 and 8$\mathrm{\,TeV}$. The ratio is measured in two regions of the dilepton invariant mass squared, $q^{2}$, to be \begin{eqnarray*} R_{K^{*0}} = \begin{cases} 0.66~^{+~0.11}_{-~0.07}\mathrm{\,(stat)} \pm 0.03\mathrm{\,(syst)} & \textrm{for } 0.045 < q^{2} < 1.1~\mathrm{\,GeV^2}c^4 \, , \\ 0.69~^{+~0.11}_{-~0.07}\mathrm{\,(stat)} \pm 0.05\mathrm{\,(syst)} & \textrm{for } 1.1\phantom{00} < q^{2} < 6.0~\mathrm{\,GeV^2}c^4 \, . \end{cases} \end{eqnarray*} The corresponding 95.4\% confidence level intervals are $[0.52, 0.89]$ and $[0.53, 0.94]$. The results, which represent the most precise measurements of $R_{K^{*0}}$ to date, are compatible with the Standard Model expectations at the level of 2.1--2.3 and 2.4--2.5 standard deviations in the two $q^{2}$ regions, respectively.

LHCb collaboration, R. Aaij, B. Adeva et al.

A measurement of the shape of the differential decay rate and the associated Isgur-Wise function for the decay $Λ_b^0\toΛ_c^+μ^-\overlineν$ is reported, using data corresponding to $3 fb^{-1}$ collected with the LHCb detector in proton-proton collisions. The $Λ_c^+μ^-\overlineν$(+ anything) final states are reconstructed through the detection of a muon and a $Λ_c^+$ baryon decaying into $pK^-π^+$, and the decays $Λ_b^0\toΛ_c^+π^+π^-μ^-\overlineν$ are used to determine contributions from $Λ_b^0\to Λ_c^{\star+}μ^-\barν$ decays. The measured dependence of the differential decay rate upon the squared four-momentum transfer between the heavy baryons, $q^2$, is compared with expectations from heavy-quark effective theory and from unquenched lattice QCD predictions.

LHCb collaboration, R. Aaij, B. Adeva et al.

The first observation of the decays $Λ_b^0 \to χ_{c1} p K^-$ and $Λ_b^0 \to χ_{c2} p K^-$ is reported using a data sample corresponding to an integrated luminosity of $3.0$ fb$^{-1}$, collected by the LHCb experiment in $pp$ collisions at centre-of-mass energies of 7 and 8 TeV. The following ratios of branching fractions are measured \begin{eqnarray*} \frac{{\cal B}(Λ_b^0 \to χ_{c1} p K^-)}{{\cal B}(Λ_b^0 \to J/ψp K^-)} = 0.242 \pm 0.014 \pm 0.013 \pm 0.009, \frac{{\cal B}(Λ_b^0 \to χ_{c2} p K^-)}{{\cal B}(Λ_b^0 \to J/ψp K^-)} = 0.248 \pm 0.020 \pm 0.014 \pm 0.009, \frac{{\cal B}(Λ_b^0 \to χ_{c2} p K^-)}{{\cal B}(Λ_b^0 \to χ_{c1} p K^-)} = 1.02 \pm 0.10 \pm 0.02 \pm 0.05, \end{eqnarray*} where the first uncertainty is statistical, the second systematic and the third due to the uncertainty on the branching fractions of the $χ_{c1}\to J/ψγ$ and $χ_{c2} \to J/ψγ$ decays. Using both decay modes, the mass of the $Λ_b^0$ baryon is also measured to be $m_{Λ_b^0} = 5619.44 \pm 0.28 \pm 0.26$ MeV/$c^2$, where the first and second uncertainties are statistical and systematic, respectively.