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Splitting long-term and short-term financial ratios for improved financial distress prediction: Evidence from Taiwanese public companies 拆分长期和短期财务比率,改进财务困境预测:来自台湾上市公司的证据
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-27 DOI: 10.1002/for.3143
Asyrofa Rahmi, Chia-chi Lu, Deron Liang, Ayu Nur Fadilah

Financial distress occurs when a company cannot meet its financial obligations within a specified timeframe, often owing to prolonged poor operational performance. While studies on financial distress prediction (FDP) use financial ratios (FRs) to forecast distress, they neglect to differentiate long-term (LT) attributes from FRs. To address this gap, our study introduces a novel model that distinguishes between LT and short-term (ST) accounting attributes in FRs. Using data from Taiwanese public companies (1991–2018), our proposed model employs a stacking ensemble classifier to split LT and ST Altman's ratios. This study addresses three key questions: (1) Do models involving split of LT and ST ratios outperform those that combine them? (2) How reliable and robust are these proposed models? (3) What is the proposed model's impact on distress prediction? The results show a significant outperformance of the existing solution, with higher accuracy, lower Type I and Type II errors, and reduced misclassification costs. These models are reliable in handling imbalanced data, proving suitable for real-market investigations. Diverse FR contexts from previous Taiwanese studies validate the distinction between LT and ST features, representing robust performance. This model identifies characteristics of correctly and incorrectly predicted distress in companies, providing nuanced insights into complex distress attributes. This study introduces a pioneering model demonstrating superior predictive accuracy, reliability, and robustness by considering the split between LT and ST accounting attributes. It lays a foundation for future studies to extend and refine the proposed model, offering valuable insights into the complex dynamics of FDP.

当一家公司无法在规定时间内履行其财务义务时,就会出现财务困境,这通常是由于公司长期经营业绩不佳所致。虽然有关财务困境预测(FDP)的研究使用财务比率(FRs)来预测困境,但它们忽视了长期(LT)属性与财务比率的区别。为了弥补这一不足,我们的研究引入了一个新模型,区分财务比率中的长期(LT)和短期(ST)会计属性。利用台湾上市公司的数据(1991-2018 年),我们提出的模型采用堆叠集合分类器来区分 LT 和 ST Altman 比率。本研究探讨了三个关键问题:(1)将 LT 和 ST 比率拆分的模型优于将它们合并的模型吗?(2) 这些拟议模型的可靠性和稳健性如何?(3) 提议的模型对困境预测有什么影响?结果表明,这些模型的准确性更高、I 类和 II 类误差更小、误分类成本更低,明显优于现有的解决方案。这些模型在处理不平衡数据时非常可靠,证明适用于实际市场调查。之前台湾研究中的多种 FR 情境验证了 LT 和 ST 特征之间的区别,体现了强大的性能。该模型识别了正确预测和错误预测企业困境的特征,为复杂的困境属性提供了细致入微的见解。本研究引入了一个开创性的模型,通过考虑 LT 和 ST 会计属性之间的差异,展示了卓越的预测准确性、可靠性和稳健性。它为未来研究扩展和完善所提出的模型奠定了基础,为了解财务困境的复杂动态提供了宝贵的见解。
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引用次数: 0
Forecasting the direction of the Fed's monetary policy decisions using random forest 利用随机森林预测美联储货币政策决策的方向
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-23 DOI: 10.1002/for.3144
Jungyeon Yoon, Juanjuan Fan

The federal funds target rate is commonly considered to be an important indicator of the state of the US economy and is of keen interest to individual investors, financial firms, and other economic agents. In this paper, we focus on the discrete changes in the federal funds target rate during the period from January 1994 to June 2022 and apply the ordinal forest model, a random forest-based prediction method for ordinal response variable. We examine the model's performance with 45 predictor variables which include macroeconomic and financial variables as well as forward-looking survey measures. For an accurate and honest measure of the model performance, we employ single-period-ahead out-of-sample forecasting accuracy instead of evaluating the in-sample fit. Our empirical results show the ordinal forest method significantly outperforms a benchmark that uses the most recent data among previous studies on federal funds target rate. We find that TB spread is the most informative from a forecasting perspective along with GDP, initial jobless claims, and survey measures.

联邦基金目标利率通常被认为是反映美国经济状况的重要指标,个人投资者、金融公司和其他经济主体都非常关注。本文重点研究了 1994 年 1 月至 2022 年 6 月期间联邦基金目标利率的离散变化,并应用了序数森林模型(一种基于序数响应变量的随机森林预测方法)。我们用 45 个预测变量(包括宏观经济和金融变量以及前瞻性调查措施)检验了该模型的性能。为了准确、真实地衡量模型的性能,我们采用了单期提前样本外预测精度,而不是评估样本内拟合度。我们的实证结果表明,在以往关于联邦基金目标利率的研究中,序数森林法明显优于使用最新数据的基准方法。我们发现,从预测角度来看,TB 利差与 GDP、初请失业金人数和调查指标一样,信息量最大。
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引用次数: 0
Regime-dependent commodity price dynamics: A predictive analysis 与时间相关的商品价格动态:预测分析
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-20 DOI: 10.1002/for.3152
Jesus Crespo Cuaresma, Ines Fortin, Jaroslava Hlouskova, Michael Obersteiner

We develop an econometric modelling framework to forecast commodity prices taking into account potentially different dynamics and linkages existing at different states of the world and using different performance measures to validate the predictions. We assess the extent to which the quality of the forecasts can be improved by entertaining different regime-dependent threshold models considering different threshold variables. We evaluate prediction quality using both loss minimization and profit maximization measures based on directional accuracy, directional value, the ability to predict turning points, and the returns implied by a simple trading strategy. Our analysis provides overwhelming evidence that allowing for regime-dependent dynamics leads to improvements in predictive ability for the Goldman Sachs Commodity Index, as well as for its five sub-indices (energy, industrial metals, precious metals, agriculture, and livestock). Our results suggest the existence of a trade-off between predictive ability based on loss and profit measures, which implies that the particular aim of the prediction exercise carried out plays a very important role in terms of defining which set of models is the best to use.

我们开发了一个计量经济学建模框架来预测商品价格,其中考虑到了世界不同状态下可能存在的不同动态和联系,并使用不同的绩效衡量标准来验证预测结果。考虑到不同的阈值变量,我们评估了通过采用不同的制度相关阈值模型可以在多大程度上提高预测质量。我们根据方向准确性、方向价值、预测转折点的能力以及简单交易策略隐含的收益,使用损失最小化和利润最大化两种衡量标准来评估预测质量。我们的分析提供了压倒性的证据,表明考虑到制度依赖性动态会提高高盛商品指数及其五个子指数(能源、工业金属、贵金属、农业和畜牧业)的预测能力。我们的研究结果表明,基于损失和利润指标的预测能力之间存在权衡,这意味着所进行预测工作的特定目的在确定使用哪套模型最好方面起着非常重要的作用。
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引用次数: 0
Seeing is believing: Forecasting crude oil price trend from the perspective of images 眼见为实:从图像角度预测原油价格走势
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-19 DOI: 10.1002/for.3149
Xiaohang Ren, Wenting Jiang, Qiang Ji, Pengxiang Zhai

In this paper, we propose a novel imaging method to forecast the daily price data of West Texas Intermediate (WTI) crude oil futures. We use convolutional neural networks (CNNs) for future price trend prediction and obtain higher prediction accuracy than other benchmark forecasting methods. The results show that images can contain more nonlinear information, which is beneficial for energy price forecasting. Nonlinear factors also have a strong influence during drastic fluctuations in crude oil prices. In the robustness tests, we find that the image-based CNN is the most stable approach and can be applied in various futures forecasting scenarios. In the prediction of low-frequency models for high-frequency data, the CNN method still retains considerable predictive power, indicating the possibility of transfer learning of our novel approach. By unleashing the power of the picture, we open up a whole new perspective for forecasting future energy trends.

在本文中,我们提出了一种新颖的成像方法来预测西德克萨斯中质原油(WTI)期货的每日价格数据。我们使用卷积神经网络(CNN)进行未来价格趋势预测,并获得了比其他基准预测方法更高的预测精度。结果表明,图像可以包含更多非线性信息,这有利于能源价格预测。非线性因素在原油价格剧烈波动时也有很大影响。在鲁棒性测试中,我们发现基于图像的 CNN 是最稳定的方法,可以应用于各种期货预测场景。在低频模型对高频数据的预测中,CNN 方法仍然保持了相当高的预测能力,这表明我们的新方法具有迁移学习的可能性。通过释放图片的力量,我们为预测未来能源趋势开辟了一个全新的视角。
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引用次数: 0
Portfolio management based on a reinforcement learning framework 基于强化学习框架的投资组合管理
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-19 DOI: 10.1002/for.3155
Wu Junfeng, Li Yaoming, Tan Wenqing, Chen Yun

Portfolio management is crucial for investors. We propose a dynamic portfolio management framework based on reinforcement learning using the proximal policy optimization algorithm. The two-part framework includes a feature extraction network and a full connected network. First, the majority of the previous research on portfolio management based on reinforcement learning has been dedicated to discrete action spaces. We propose a potential solution to the problem of a continuous action space with a constraint (i.e., the sum of the portfolio weights is equal to 1). Second, we explore different feature extraction networks (i.e., convolutional neural network [CNN], long short-term memory [LSTM] network, and convolutional LSTM network) combined with our system, and we conduct extensive experiments on the six kinds of assets, including 16 features. The empirical results show that the CNN performs best in the test set. Last, we discuss the effect of the trading frequency on our trading system and find that the monthly trading frequency has a higher Sharpe ratio in the test set than other trading frequencies.

投资组合管理对投资者至关重要。我们提出了一种基于强化学习的动态投资组合管理框架,使用近似策略优化算法。该框架由两部分组成,包括特征提取网络和全连接网络。首先,以往基于强化学习的投资组合管理研究大多针对离散行动空间。我们针对带有约束条件(即组合权重之和等于 1)的连续行动空间问题提出了一种潜在的解决方案。其次,我们探索了不同特征提取网络(即卷积神经网络[CNN]、长短期记忆[LSTM]网络和卷积 LSTM 网络)与系统的结合,并对包括 16 个特征在内的 6 种资产进行了大量实验。实证结果表明,CNN 在测试集中表现最佳。最后,我们讨论了交易频率对交易系统的影响,发现在测试集中,月度交易频率的夏普比率高于其他交易频率。
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引用次数: 0
Traffic flow prediction: A 3D adaptive multi-module joint modeling approach integrating spatial-temporal patterns to capture global features 交通流量预测:三维自适应多模块联合建模方法:整合时空模式,捕捉全局特征
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-18 DOI: 10.1002/for.3147
Zain Ul Abideen, Xiaodong Sun, Chao Sun

The challenges in citywide traffic flow are intricate, encompassing various factors like temporal and spatial dependencies, holidays, and weather. Despite the complexity, there are still research gaps in effectively incorporating these spatio-temporal relations through deep learning. Addressing these gaps is crucial for tackling issues such as traffic congestion, public safety, and efficient traffic management within cities. This paper underscores notable research gaps, including the development of models capable of handling both local and global traffic flow patterns, integrating multi-modal data sources, and effectively managing spatio-temporal dependencies. In this paper, we proposed a novel model named 3D spatial–temporal-based adaptive modeling graph convolutional network (3D(STAMGCN)) that addresses for traffic flow data in better periodicity modeling. In contrast to earlier studies, 3D(STAMGCN) approaches the task of traffic flow prediction as a periodic residual learning problem. This is achieved by capturing the input variation between historical time segments and the anticipated output for future time segments. Forecasting traffic flow, as opposed to a direct approach, is significantly simpler when focusing on learning more stationary deviations. This, in turn, aids in the training of the model. Nevertheless, the networks enable residual generation at each time interval through learned variations between future conditions and their corresponding weekly observations. Consequently, this significantly contributes to achieving more accurate forecasts for multiple steps ahead. We executed extensive experiments on two real-world datasets and compared the performance of our model to state-of-the-art (SOTA) techniques.

全城交通流面临的挑战错综复杂,包括时空依赖性、节假日和天气等各种因素。尽管情况复杂,但在通过深度学习有效整合这些时空关系方面仍存在研究空白。解决这些差距对于解决城市交通拥堵、公共安全和高效交通管理等问题至关重要。本文强调了显著的研究差距,包括开发能够处理本地和全球交通流模式的模型、整合多模式数据源以及有效管理时空依赖关系。在本文中,我们提出了一种名为三维时空自适应建模图卷积网络(3D(STAMGCN))的新型模型,该模型能更好地对交通流数据进行周期性建模。与之前的研究不同,3D(STAMGCN) 将交通流量预测任务视为一个周期性残差学习问题。这是通过捕捉历史时间段之间的输入变化和未来时间段的预期输出来实现的。与直接方法相比,如果侧重于学习更多的静态偏差,交通流量预测就会简单得多。这反过来又有助于模型的训练。尽管如此,通过学习未来状况与相应的每周观测数据之间的变化,网络可以在每个时间间隔生成残差。因此,这大大有助于提前多步实现更准确的预测。我们在两个真实世界的数据集上进行了大量实验,并将我们的模型性能与最先进的(SOTA)技术进行了比较。
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引用次数: 0
Forecasting tail risk of skewed financial returns having exponential-polynomial tails 预测具有指数-多项式尾部的倾斜金融收益的尾部风险
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-15 DOI: 10.1002/for.3154
Albert Antwi, Emmanuel N. Gyamfi, Anokye M. Adam

Aggregated long and short trading risk positions of speculative assets over time are likely to be unequal. This may be because of irrational decisions of traders and investors as well as catastrophic events that lead to pronounce or salient market crashes. Returns of such assets are therefore more likely to have one polynomial tail and one exponential tail. The generalized hyperbolic (GH) skewed Student-t distribution is known to handle such situations quite well. In this paper, we use generalized autoregressive conditional heteroscedasticity (GARCH) models to empirically show the superiority of the GH skewed Student-t distribution in forecasting the extreme tail risks of cryptocurrency returns in the presence of substantial skewness in comparison with some competing distributions. Furthermore, we show the practical significance of the GH skewed Student-t distribution-based risk forecasts in computing daily capital requirements. Evidence from the study suggests that the GH skewed Student-t distribution model tends to be superior in forecasting volatility and expected shortfall (ES) but not value-at-risk. In addition, the distribution yields higher value-at-risk (VaR) exceptions but surprisingly avoids the red zone of the Basel II accord penalty zones and produces lower but optimal daily capital requirements. Therefore, in the presence of substantially skewed returns having exponential-polynomial tails, we recommend the use of the GH skewed Student-t distribution for parametric GARCH models in forecasting extreme tail risk.

随着时间的推移,投机资产的多头和空头总交易风险头寸很可能是不平等的。这可能是由于交易者和投资者的非理性决策,以及导致市场崩盘或显著崩盘的灾难性事件。因此,这类资产的收益更有可能出现一个多项式尾部和一个指数尾部。众所周知,广义双曲(GH)偏斜 Student-t 分布能很好地处理这种情况。在本文中,我们使用广义自回归条件异方差(GARCH)模型,通过实证研究表明,与一些竞争性分布相比,GH 偏态 Student-t 分布在预测加密货币回报率的极端尾部风险方面更具优势,因为它存在很大的偏度。此外,我们还展示了基于 GH 偏态 Student-t 分布的风险预测在计算每日资本要求方面的实际意义。研究证据表明,GH 偏态 Student-t 分布模型在预测波动率和预期缺口 (ES) 方面往往更胜一筹,但在预测风险价值方面却并非如此。此外,该分布产生了更高的风险价值(VaR)异常,但却出人意料地避开了《巴塞尔 II 新资本协议》惩罚区的红色区域,并产生了更低但却是最佳的每日资本要求。因此,在存在具有指数-多项式尾部的大幅倾斜回报的情况下,我们建议在预测极端尾部风险时使用参数 GARCH 模型的 GH 倾斜 Student-t 分布。
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引用次数: 0
Volatility forecasting incorporating intraday positive and negative jumps based on deep learning model 基于深度学习模型的包含日内正负跳变的波动率预测
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-15 DOI: 10.1002/for.3146
Yilun Zhang, Yuping Song, Ying Peng, Hanchao Wang

Most existing studies on volatility forecasting have focused on interday characteristics and ignored intraday characteristics of high-frequency data, especially the asymmetric impact of positive and negative jumps on volatility. In this paper, 5-min high-frequency data are used to construct realized volatility which is decomposed into continuous components and jump components with positive and negative directions. Then, this information is combined with the long short-term memory model for the realized volatility prediction. The empirical analysis demonstrates that negative jumps resulting from negative news have a more significant impact on market volatility than positive jumps. Additionally, the long short-term memory model, which incorporates positive and negative jump volatility, outperforms traditional econometric and machine learning models in predicting out-of-sample volatility. Furthermore, applying the prediction results to value at risk yields a better measurement effect than the generalized autoregressive conditional heteroskedasticity model.

现有的关于波动率预测的研究大多侧重于日间特征,而忽略了高频数据的日内特征,尤其是正负跳变对波动率的非对称影响。本文利用 5 分钟高频数据构建已实现波动率,并将其分解为连续成分和正负方向的跳跃成分。然后,将这些信息与长短期记忆模型相结合,对已实现波动率进行预测。实证分析表明,与正向跳跃相比,负面新闻导致的负向跳跃对市场波动的影响更为显著。此外,在预测样本外波动率方面,包含正负跳跃波动率的长期短期记忆模型优于传统计量经济学和机器学习模型。此外,与广义自回归条件异方差模型相比,将预测结果应用于风险价值会产生更好的测量效果。
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引用次数: 0
A deep learning-based multivariate decomposition and ensemble framework for container throughput forecasting 基于深度学习的集装箱吞吐量预测多变量分解和集合框架
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-14 DOI: 10.1002/for.3151
Anurag Kulshrestha, Abhishek Yadav, Himanshu Sharma, Shikha Suman

Traditional linear models struggle to capture the intricate relationship between dynamic container throughput and its complex interplay with economic fluctuations. This study introduces a novel, deep learning-based multivariate framework for precision in demanding landscapes. The framework consistently outperforms eight established benchmark models by employing vital economic indicators like GDP and port tonnage, identified through rigorous predictor importance analysis of an initial set of four variables, including imports and exports. Statistical significance is demonstrably achieved through the Diebold–Mariano and Wilcoxon rank-sum tests. Utilizing the Port of Singapore as a case study, the framework offers agile adaptability for the ever-evolving global supply chain. Comprehensive analyses ensure robustness, decoding intricate throughput dynamics. Incorporating noise-assisted multivariate empirical mode decomposition (NA-MEMD) for nonlinear decomposition and bidirectional long short-term memory (BiLSTM) for time series dependencies, this innovative approach holds promise for revolutionizing container throughput forecasting and enhancing competitiveness in the global market through optimized resource allocation and streamlined operations.

传统的线性模型难以捕捉集装箱动态吞吐量之间错综复杂的关系及其与经济波动之间复杂的相互作用。本研究介绍了一种新颖的、基于深度学习的多变量框架,可在要求苛刻的环境中实现精确性。该框架采用了 GDP 和港口吨位等重要经济指标,通过对包括进出口在内的初始四组变量进行严格的预测重要性分析,确定了这些指标,其性能始终优于八个既定的基准模型。通过 Diebold-Mariano 和 Wilcoxon 秩和检验,统计意义明显。以新加坡港为案例,该框架为不断变化的全球供应链提供了灵活的适应性。综合分析确保了稳健性,解码了错综复杂的吞吐量动态。这种创新方法结合了用于非线性分解的噪声辅助多变量经验模式分解(NA-MEMD)和用于时间序列依赖性的双向长短期记忆(BiLSTM),有望彻底改变集装箱吞吐量预测,并通过优化资源配置和简化操作提高在全球市场的竞争力。
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引用次数: 0
Forecasting stock returns with industry volatility concentration 利用行业波动集中度预测股票回报率
IF 3.4 3区 经济学 Q1 ECONOMICS Pub Date : 2024-05-14 DOI: 10.1002/for.3150
Yaojie Zhang, Mengxi He, Zhikai Zhang

In this paper, we show that industry volatility concentration is a strong predictor for aggregate stock market returns. Our monthly industry volatility concentration (IVC) index displays significant predictive ability, with in-sample and out-of-sample R2 statistics of 0.686% and 0.712%, respectively, which outperforms a host of prevailing return predictors. Moreover, the IVC index can generate high utility gains of 143.8 basis points above the historical average benchmark for mean–variance investors. We find that the IVC index is countercyclical. Furthermore, the predictive source of the IVC index not only stems from the cash flow and discount rate channels but is also explained by the channels of investor attention and sentiment. The predictive ability of our IVC index also remains significant under a broad range of robustness tests.

本文表明,行业波动集中度是股市总回报的有力预测指标。我们的月度行业波动性集中度(IVC)指数显示出显著的预测能力,样本内和样本外 R2 统计量分别为 0.686% 和 0.712%,优于一系列流行的收益预测指标。此外,IVC 指数还能为均值方差投资者带来高于历史平均基准 143.8 个基点的高效用收益。我们发现 IVC 指数具有反周期性。此外,IVC 指数的预测来源不仅来自现金流和贴现率渠道,还来自投资者关注和情绪渠道。在广泛的稳健性测试中,我们的 IVC 指数的预测能力也依然显著。
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引用次数: 0
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Journal of Forecasting
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